Graphics are good. Art is good. Characters look fine. Story is interesting enough, nothing special however. Animations are decent, but sex scenes are meh. Most of them are rather vanilla, and not spicy at all.
You have choices, but they are meaningless. Basically if you choose one choice, and that one isn't a correct one, the game will tell you that and progress with the other choice. This isn't a game, it's just a LN masked as a game. The gameplay is rather linear. Updates are released in a form of one girl per update, so basically you'll be playing one girl story at a time.
Also, it takes more than one year per update and time of updates is only increasing. If they continue this way, the update after the next one is going to take two years. In other words, it's basically 1+ year for couple of sex scenes and maybe 2-3 hours of gameplay, and that's if you're a slow reader that reads every single word even tho the gameplay isn't worth your time at all. So you really shouldn't be bothered with trying this game right now. Rather wait 10 more years and if you by any chance still remember this slow shit, than download it and play it if you must.
Also, the world that is introduced to you seems big, so you expect a lot of content, but there isn't really. Don't get hooked on it and don't bother. You won't be introduced to most of it even in 5 more years. Devs make ton of money on this mediocre shit, so they certainly won't change anything.