Spoiler free! There might be small spoilers regarding character names but as long as you don't look said names up you'll be fine.
I actually just finished this game in like a whole week. Wow. All achievements.
It was an overall amazing experience! (Note that I played Co-op with a friend via parsec.)

Combat is very fun. The amount of characters you get as the game progresses allows for a lot of freedom as to how you want the combat to progress. You can take it slow and let every character do their dedicated combo one by one, or be flashy and let them all do stuff if you're up for it. It allows for good player expression! This is the case in co-op as well as any player can control any set amount of characters (except P1, they are always the MC).

Movement is initially somewhat limiting due to your options, but as the game progresses and the more you unlock the more free-form it gets. By the end of the game it gets pretty crazy if you get there. It's really fun and rewarding to go back to old areas and get to places you couldn't get to before to get collectibles or progress the story or side-quests.

For each character you get in the game, later on you can do a side-quest for them that gives them some extra character levels. Some are really simple, but some are extremely tedious and require a lot of backtracking. It's basically "go to this place, then back to this place, then to this" etc etc, sometimes you fight, sometimes you just talk. This isn't that bad IF you know in advance. Certain characters really ask you to go out of your way to go to places that can't be reached quickly and easily. I wanna say about 20-30% of my playthrough was just doing every single quest to fill it out. There's resources or guides out there to help with this process, but it's a bit scarce. I recommend literally having a spreadsheet to make this easy for you, doing each character one by one on their own will make you tired really quick from going to places you've been to before so much.
(And no, you can't just activate every single quest and do them all at once, I tried that and it only did the one I selected latest. You need to clear a part, go to your realm, talk to someone else to activate THEIR quest flag, then you can move on back and forth for example.)

Finally, I did encounter a few technical issues but these were not game breaking, more or less inconvenient.
For one, a certain miniboss fight in the story had a flag where after you beat it you talk to your opponent. No biggie right? Well this flag doesn't go away until you finish the boss after this miniboss. I beat the miniboss, realised I had to do something else, then beat a random monster only to be teleported ALL the way back to the miniboss, get the talk again, etcetera. It was funny but it kinda forced me to beat the boss when I wanted to do something else first.

Second was camera issues. These were not common at all but when they did show up they really strained me. Sometimes the camera fades into the background/floor and then adjusts itself leaving you 'blinded' as you progress to another area for a second or two, or sometimes it freaks out between one and another camera angle causing it to vibrate your view rapidly, making it next to impossible to see what you're doing. This was rare but I can imagine how this can be scary for epileptic people on some levels. It also forced me to platform blind, which isn't really that nice.

In the end I enjoyed the game with my friend a lot. My playtime shows and how much I racked up of it in a week. Some parts of getting full completion were slightly tedious, but I was very satisfied when I was done and didn't feel like I wasted my time (you get a little special thing at the end of the game when you clear all optional quests!)
High recommend if you enjoy platforming and RPG stuff, although this game doesn't really showcase that much JRPG qualities since the combat is so much more interactive which was easily my favorite thing next to the story and platforming.

Spoiler free! There might be small spoilers regarding character names but as long as you don't look said names up you'll be fine. I actually just finished this game in like a whole week. Wow. All achievements. It was an overall amazing experience! (Note that I played Co-op with a friend via parsec.) Combat is very fun. The amount of characters you get as the game progresses allows for a lot of freedom as to how you want the combat to progress. You can take it slow and let every character do their dedicated combo one by one, or be flashy and let them all do stuff if you're up for it. It allows for good player expression! This is the case in co-op as well as any player can control any set amount of characters (except P1, they are always the MC). Movement is initially somewhat limiting due to your options, but as the game progresses and the more you unlock the more free-form it gets. By the end of the game it gets pretty crazy if you get there. It's really fun and rewarding to go back to old areas and get to places you couldn't get to before to get collectibles or progress the story or side-quests. For each character you get in the game, later on you can do a side-quest for them that gives them some extra character levels. Some are really simple, but some are extremely tedious and require a lot of backtracking. It's basically "go to this place, then back to this place, then to this" etc etc, sometimes you fight, sometimes you just talk. This isn't that bad IF you know in advance. Certain characters really ask you to go out of your way to go to places that can't be reached quickly and easily. I wanna say about 20-30% of my playthrough was just doing every single quest to fill it out. There's resources or guides out there to help with this process, but it's a bit scarce. I recommend literally having a spreadsheet to make this easy for you, doing each character one by one on their own will make you tired really quick from going to places you've been to before so much. (And no, you can't just activate every single quest and do them all at once, I tried that and it only did the one I selected latest. You need to clear a part, go to your realm, talk to someone else to activate THEIR quest flag, then you can move on back and forth for example.) Finally, I did encounter a few technical issues but these were not game breaking, more or less inconvenient. For one, a certain miniboss fight in the story had a flag where after you beat it you talk to your opponent. No biggie right? Well this flag doesn't go away until you finish the boss after this miniboss. I beat the miniboss, realised I had to do something else, then beat a random monster only to be teleported ALL the way back to the miniboss, get the talk again, etcetera. It was funny but it kinda forced me to beat the boss when I wanted to do something else first. Second was camera issues. These were not common at all but when they did show up they really strained me. Sometimes the camera fades into the background/floor and then adjusts itself leaving you 'blinded' as you progress to another area for a second or two, or sometimes it freaks out between one and another camera angle causing it to vibrate your view rapidly, making it next to impossible to see what you're doing. This was rare but I can imagine how this can be scary for epileptic people on some levels. It also forced me to platform blind, which isn't really that nice. In the end I enjoyed the game with my friend a lot. My playtime shows and how much I racked up of it in a week. Some parts of getting full completion were slightly tedious, but I was very satisfied when I was done and didn't feel like I wasted my time (you get a little special thing at the end of the game when you clear all optional quests!) High recommend if you enjoy platforming and RPG stuff, although this game doesn't really showcase that much JRPG qualities since the combat is so much more interactive which was easily my favorite thing next to the story and platforming.