If I could give a mixed review I would as I enjoyed a lot of the time that I put in... But almost half of it was just me waiting for things to happen unfortunately. NOTE I ONLY PLAYED SOLO.
The Pros? This is quite a fun little automation game in the early game with some solid early research setups and the simple automation can be very fun.
The problems...
If you're trying really hard to go fast unlike myself or are playing with more than 1 person I'd expect you'd hit the bad bits a lot lot faster than I did, but here's the pain points I found.
1. Zones to survive a new area often requires going into that new area many many times, in these areas you can go from full to zero health in a very short amount of time. But considering to research the items to survive in that zone you need to be down there long enough to either fully automate and or manually feed a miner.
2. Building is sketchy, the inability to either automate with blueprints once you have built something once or even a machine to tear down buildings/setups you no longer want or want to fix up meaning every single ore you mine from the starter zone can take in the relm of 30m to an hour to set up yet alone tearing down something to start with better equipment.
3. Scaling for the enemies is terrible, I never felt at threat until I was dead and then after hitting a point where I was dying it wasn't oh I'll make a minor tweak and be fine, it often took hours to upgrade my defences to the point I would survive again. While there is an increase to the timer between waves if you lose the difficulty of said wave doesn't seem to be adjusted so you can often lose your hub multiple waves in a row and by late game there is quite literally no reason to even defend it anymore as the benefits you get from defending successfully are incredibly outweighed by the time investment and resource cost of doing so.
4. Research, mostly I don't hate this system excluding the fact that you cannot reach late game without researching items that ARE NOT INCLUDED in the base game meaning you either spend minutes to hours researching things that you can never use or you buy the DLCs.
5. Performance unfortunately the FPS in this game is incredibly unreliable and once you hit late game can get terrible, I'd often be sitting sub 15 FPS on settings below the highest and with choices made to optimise my base towards FPS however there are several strange choices made for example one of the primary ways to improve FPS is to remove items dropped on the ground... Which considering almost every single enemy drops items and the automatic item collectors also drop FPS is just the strangest choice, why the turrets couldn't just have an upgraded version that collects items and teleports them to a hopper for high energy cost I don't know.

I have many more gripes with the game such as things being the exact opposite of intuitive, certain things with filters simply don't filter, the inability to get power to newer zones with ease even by late game and the systems for dealing with certain items that you can wind up with insane quantities of but I think if I'd gone in in multiplayer and only played a few sessions most of the issues I would have experienced would have been pretty minor but all in all at the end of the day I think