>>301103370
Haven't tried Koikatsu in VR yet, but since it's not made with VR in mind, it's probably bad.

C(O)M3D2 VR controls on the Index are absolute trash. I stopped playing it because of that alone. But the karaoke is fun.

WSS is just trashily made all-around. The GUI is nearly no longer possible to be navigated due to the content, 97% of which is just repeats of the same scene with different models. If you want to load a scene at the bottom of the scene list, you literally have to hold the scrolling thumbstick down for about 5 minutes (not exaggerating) every time you start WSS - and pray you actually hold it down and not slightly to the side, because otherwise you accidentally favourite entries, which screw up your favourites lists and makes browsing it even harder.
Some content is broken. Countless duplicates. It could be fixed by going through all the content folders yourself and deleting the trash like Dead or Alive models, but you have to fix so much that at that point you could just make your own Waifu Sex Simulator.
After all WSS is literally just MocuMocuDance with some models, backgrounds, sounds and motions the creator likes. So, if you were into MMD before, you basically already have your own version already anyways, if you download MocuMocuDance.

Or, you could go the Patrician's Route and download Dance Viewer VR (aka: DVVR) instead, which is basically "MocuMocuDance but in an up-to-date Unity version, with an actually good VR interface" and some more stuff like proper IK support. For dance motions, it already is much better than MocuMocuDance. Major thing missing is multiple actors, so it can't replace sex scenes yet, but DVVR is actually in development so it will probably happen - contrary to WSS, which is just sticking more duplicate content on the broken base while calling 
>RidingAnimation#7 with Gumi in blue lingerie something completely uniquely different from
>RidingAnimation#7 with Gumi in yellow lingerie.
Implying thousands of scenes.