It's nowhere near finished of course (v0.2.5 so far), so I might have to come back and lower my score later, but I really like the game so far.
Games where you actually have a job to do (with decent mechanics, and lewd stuff scattered throughout) are always more fun to me than the ones where you're a passive observer, or where you just wander around seeking out/avoiding sex scenes. The timing of the drink pouring minigame is a bit irritating (especially on the shotglass), and doesn't add a lot to the overall bartending mechanics, but that's a minor quibble and one they move away from once you get access to wines and mixed drinks.
I like the themes of cheerful corruption or consensual mind control. It's clear right from the start that the heroine is being altered by her experiences, and she/you are given multiple opportunities to leave if you don't approve, but it's equally clear that (if you stay) she prefers the changes, and her fate here is better than it would be anywhere else in the setting.
The art is good. The writing is funny. Most of the characters are enjoyable, from deuteragonists to random recurring bit npcs (though I have problems with a couple of the more major side characters). Progression rates seem reasonable, which is rare to see in such early builds. It would be nice if the end points of the various side paths were telegraphed more clearly so you didn't waste time checking back for content that doesn't exist yet, but that's the kind of thing that will only be a problem in pre-alpha releases.
If you're just looking for hardcore fucking, give this a pass until it's much further along. The story is about slow development and there's multiple factors preventing anything from happening to the heroine until she wants it to, and it's only like a quarter of the way done, so the most you'll get to see is masturbation, exhibitionism, and a little groping.
But if you're looking for something cute and funny and lewd and clever, and you have enough time on your hands to waste some of it on a work in progress, I doubt you'll regret taking a look here.