The game to be a free one is way better than most free games, with this I'm not saying others are bad but most people do eventually decide to drop the whole thing for no reason (even if maybe there is one but they don't have to say it, however most don't really have a reason if not just dropping it and never going back to it, some have reasons but not all)
Not only it's voiced really well to the point I was wondering if it was the actual VA for a moment (XD), really good art and music but it's also complete and with beautiful CGs, however there are some issues with saving, where you save maybe at hour 5 AM but the game will go back to the start of hour 5 rather than the time you stopped and if you save at 6 AM the game won't let you load there forcing you to restart it (and it's troublesome when you can't skip the dialogues)
Another issue is that even if you open the menu to save or anything else the dialogue keep going at each click even if you aren't actually on the scene but saving or other stuff.
Two CGs just can't be obtained, at least I can't understand how and a explanation for that would be useful.
The biggest issue is probably the fact that if you quit the game once you're done it will delete everything, from CGs to saves etc.
The smallest issue is that the interface (?) covers up the CGs when looking them again meaning you can't screenshot them but it isn't a extremely troublesome issue given the CGs appear without the interface in the game itself when playing.
A few more savefiles would be useful but not necessary given the game is short four can land on the "enough" category for saving files.
Another issue I found which might be just me is the inconsistency in reaching the Vanny ending, where even if I act cold to them and chose friendship or not even caring about them neither as a friend neither as romantic partner and I still got the normal ending where she doesn't show up.
On the other hand my mom decided to play it and somehow randomly managed to reach the Vanny ending without being mean or nice to them, sometimes nice sometimes distant and got the Vanny ending when choosing to compliment Moon about his height in a platonic way and meeting Eclipse but without accepting to help him get to Sun and Moon, being sometimes nice sometimes not so it feels kinda random/unclear to get the specific Vanny ending (again it could be easy and I messed up somehow)
Those are not critiques, just things that could be fixed kinda like a feedback I think is the right word (english isn't my first language so I don't know)