Really fun game! I feel however that it's biggest strength (and also project kat's) is the dialog between characters. The best storyline in kat for me was the girls in the club, and I really like the interaction betweeen Lacie and his brother, and Sai. Also, you really need to nerf those minigames xd, it should be possible to beat them without having to memorize the attack pattern.
For me the biggest detriment are the forest puzzle and the miss knives puzzle. The things you have to do are not obvious and I had to go interact with every pixel, go try every possible combination. I don't know if its something typical of the RPG genre, but it feels wrong (and almost dropped the game for it).
Btw, I think I found a bug in the miss knives puzzle, I got softlocked, unable to access a room to collect an item. Luckily had recently saved the game, but if someone doesn't they might lose a lot of time getting to that part again (considering is at the end of the game). Don't know where to report it though, so maybe you can help me with that.