Pros:
Art is really nice, some of the best 2D art I've seen in a porn game.
No knowledge of League is required (never played, and it didn't bother me)
Cons:
Gameplay is really grindy. You're basically running through the same scene several times in a row with slight variations as Janna gets naughtier and each lay levels up a little.
There is and there isn't much content. If you view every variation as new content, sure, there's plenty there. But if you count variation as repeats, there's a lot less content than there appears to be.
The corruption, the reason I and some others checked this out, is really fast. It's less of corruption and more of realizing she really likes being a slut. This might be a positive for some people, but basically, think of it as corruption in fast-forward. YMMV based on how you feel about that.
I would have given it three stars (It's not for me, but it also still is pretty grindy for the amount of content), but what I hate is that you can't really choose your path. You have to interact with every character multiple times. (You can avoid at least some sex with Ron, but not with the other guys.) I'm used to games, especially porn games, giving me that choice. To force me into content that I'm just going to skip through is unacceptable to me.
(Edit because I forgot: This review is based on a playthrough of v1.2 up through most of the mayor content.)