Just finished the full version after following this game for a while. The ending wraps everything up nicely, the only real criticism I got is that maybe the new gameplay elements need to be unlocked in a more straightforward manner. I understand it's a legacy issue, left over from when stuff was put into the game as soon as it was developed, but having lingerie and swimsuits locked behind Maria's route is really fucking stupid.
Actually, I got some more:
1. All the events you can do with girls, flowers and other gifts are utterly inconsequential because of how little rep they gain you. It feels stupid to do anything other than chatting, but chatting gets tedious real quick. In fact, the entire rep grind mechanic gets really annoying, it was fine in the early access when we were drip-fed content, but in the full version it gets too much.
2. Same with money - fishing is miles ahead of any other activity, which creates a similar "damned if you do, damned if you don't" situation.
3. A minor thing, but I don't entirely understand why couldnt we get the freeplay after the game ends? The plot mentions the rescue won't be there for another few days.