I bought out of pure coincidence 2 hours after the new version release, here's my feedback:
Premise: I haven't tried with controllers the app that much
At least with hand tracking i wasn't able to change position for the male character.
When the male character is hidden it's just "transparent" and makes everything under him invisible as well, making the menu almost impossible to use once the male body spawns.
Passthrough was the thing that convinced me to try this (i mean i have Koikatsu so it was THE feature that made me buy), yet it becomes a mess to use with hands only since you can't move the female character after pressing start, making most of the positions out of reach, i suggest swapping the positions of the copy models(the ones that appeares before starting when you can still edit their position) when you swap position so that they are always in front of you, or simply put a single model that swaps animations.
This could be an incredible app even if it's small but the hidden body problem must be resolved, and there should be more positioning options to easily move the models(and yourself in normal maps) around especially in passthrough, for both male and female, plus everytime i tried to recenter myself both in passthrough and in normal maps i was almost always sent far from the models.
On top of that i was under the impression that "camera height" doesn't really work.
Also it wasn't a big deal but there is a huge white rectangle box under the female character in passthrough mode.
TLDR: It could be great but it needs to be easier to use and have more positioning/moving options with hand tracking, plus the male hidden body problem needs to be resolved
Update: Tried with controllers: way better(in normal maps), you can move around in normal maps however you want even if the rotation is a bit janky, however while camera repositioning is better, there is still no repositioning for any of the models, male or female, once pressed start, making the same problems i had with hand tracking transfer over and still making the passtrought kind of a mess if you aren't lucky and don't get the perfect position
I suggest this for anyone who wants a cheaper Koikatsu alternative, it has less positions, maps and options, but it works fine in vr, it has hand tracking and you can put in any vrm 1.0 models(not tested yet but seeing the comments it should be possible) which is amazing since online there are endless of those or if like me you know blender or vroid but not whatever thing goes on with Koikatsu modding and want to do your own models, but for now it's a pass if like me you wanted it mainly for passthrough given the status of model repositioning
P.s. in this page says you can change male genitalia position so i may be just dumb, but still as of now idk how to.