Played as a toy, I'd rate it a 5.
As an actual game (or even a minigame), I'd rate it a 3 or so, but I'm going to be nice and say the game is a good toy, rather than a simple game.
Even counting the secrets, you can do everything in one sitting, and there's not a whole lot of replay value, unless you like staring at the same woman doing the same 8-or-so things over and over again in VR.
What there IS is a solid little toy, a teeny sandbox that lets you do a handful of neat things to a (surprisingly decently voiced) woman.
...There's not much to say, heh.
Scraping the bottom of the barrel to add more to this review, I'd say the game has a decent amount of secrets.