The game is still super fun! The new UI is fantastic and makes a lot of things clearer. The biggest issue I have is that the lategame feels a bit dull compared to the early and midgame. This is mainly due to the fact that everything gets slaughtered unless you either have really good synergy, or jack/vamp scaled up from early. Maybe make it so that some stronger units are introduced in later floors so you can feel like you're actually buying something that won't just get eviscerated.
Can't wait for what this game has in store! Keep it up devs :D