After playing this game for 1,000+ hours I have found 1 thing that always makes me want to come back. Gameplay. The gameplay is just so much fun for me...I love it more then anything else in the game! I love going in as nova and using my fourth ability and wiping out hordes of enemies with a single shot from my opticore. I love going in as valkyr and just absolutely destroying everything in sight, I love the mechanics (even though some of them are bugged, incomplete, or even kinda pointless) and the amount of weapons, and variety of warframes. ( the amount of weapons in Warframe is staggering!) the 2nd thing about Warframe that I love so much is the graphics. And the artstyle. It is a very very pretty game!
There are downsides though. DE (the devs) have sometimes not listened to the community, and have even flat out ignored the requests from the community. Sometimes for the better...Sometimes not. I am not saying they're a bad dev team, I am only showing that warframe and Warframe are not perfect.
Grinding is another major issue that I have found throughout my 1000+ hours of playing, it needs to be tweeked in quite a few areas. A lot of times I have to spend a lot of my time trying to get something that isn't worth my time, granted that may be my fault sort of, but I feel they could make the grind a bit faster not as game stopping as it sometimes is.

Overall warframe is a very fun game that is constantly changing and improving, and I hope to see it continue! Well done DE!
8/10