Decent implementation of the idea. But none of these reverse vampire survivors games have really been interesting to me. It's essentially all just clicking a bunch. There's barely any strategy involved and nothing to do really. You just click and switch units. Rinse and repeat until win. I mean it isn't surprising considering taking the opposite of a good idea almost inherently removes the good part.
I think a lot of people got too excited that this theme allows them to make a mixup of their favorite games but got lost in the sauce and didn't think the idea through to see if it'd be fun.
I don't mean to hate, the game is well made and is good for what you set out to do. It's mostly just the core idea of so many games this year being flawed. And it can be difficult to get any real critical feedback with everyone wanting to leave positive comments so you'll play and review their game nicely.