A few bugs, not sure if they have been reported yet, but:
1) You can give mini-pumps and other items to the nameless NPC shopkeepers and they may accept them, but if they do you cannot get those items back.
2) If ANY character is given/tries to use two Minipumps the game crashes, sometimes it can be hard to remember who you have given the Minipump to. Feels like there should be a check to ensure you can't equip multiple copies of any item, but that doesn't seem to be the case yet.
3) You can go on the vacation and invite Aria despite even meeting her yet, which is kinda weird.
4) There is no toilet in the Vacation area, so if you the only way to empty your bowels is to overfill your body with water using the shower head. This also means you typically have no way of emptying Aria's Bowels.
That's all I can think of right now, but the game is really fun regardless.