Very buggy. Offending Dad does not decrease relationship, you can't interact with the mom after a while, it just says "you are too exhausted or hungry" even at both stats full, her submission does not increase the few times you can interact with her.
Several missing scenes, stats randomly increasing and decreasing for no reason.
Can't seem to trigger any NTR scenes other than grandpa touching GFs leg.
Just overall this game needs a lot of work.
Edit: Found another interesting thing. If you enter the kitchen, eat say two canned food then "Approach Sister" then go back with the arrows the food comes back but your food stat is still up aka infinite food. EDIT2: No the stat also goes down just not when you back, it goes down drastically the next time any of your stats change.