Nothing obvious; no game breaking bugs or unplayability. Just too little, too late. If it came out 5 years ago, it would have a chance, but that space is too crowded now with F2P offerings to tolerate a bland entry with high upfront cost. It sounds like they’ll retool it into F2P, hopefully add something unique, and relaunch.
Feels like someone playing Helldivers. That’s literally one of the tips, “Don’t Die!”