There are three main things to base your decision on if you're trying to decide to play this game or not. First of all, the sharing is basically gonna happen no matter what, but you can chose alternate scenes when it happens. More details below. Secondly, the models, and lastly how well you tolerate crazy bullshit.
The crazy insanity thing isn't often my thing. However here I think it kinda works for me. At least it isn't a major problem, when I usually find it to be a bit of a showstopper. It is crazy bullshit, but the fact half of it is presented as intentional crazy bullshit helps, I think. The 'real' part of it is also mostly coherent, which many of the crazy games can't say. Even if you don't typically like it, I think you probably shouldn't discount this game on that aspect alone.
But I have to admit I'm not into the sharing thing... and considering we're doing basically new games for every episode - even having to rename characters every time - any kind of lasting choice is basically impossible. I assume this is part of the reason for the warning that no matter what we chose we'll get later references to the sharing.
I applaud the dev for being on the few not trying to make 5 intertwined games at once, but... it also basically means the sharing is what actually happens and we can just kinda chose to weirdly ignore it. Not my thing. y problem with the whole sharing thing is at least as much about knowing it as it is seeing it. And every inconsistency is just going to be a direct reminder about what 'actually' happened.
As for the models, well, either you like em or you don't I guess. I don't think I have much to add here other than a very small warning that you do sometimes get pretty egregious clipping in some of the animations with the bustier characters.