While this is a great game my major criticism was obscurity of getting desired girl. Maybe creator intended game to be like this to increase its replay value. The downside is you are forced to use walktrough to pick correct options which removes quite lot of fun from game.
With all due respect (since opinions can always differ), the game is extremely straight-forward. It's extremely hard to mess up and lose the girl paths. And Ren'Py itself is very forgiving and even allows you to go back to chose again. More easy than this would be a game without choices, with a story already made.
In fact, this is one of the few "easy choices" games I love (mostly due to it's content with humor and characters), since I usually prefer harder games. Not extremely hard that forces you to go to an walkthrough, but in where choices aren't easy. This game isn't hard because it's objective it's to feel good, to feel smooth, a bit like a slice of life anime (lmao). It's goal is very direct, and that's why it works. It doesn't try to reach a specific audience or genre, only wants you to have a good time.
It may seem a bit biased since some already know it's one of my favorite games on these forums (also because the dev continuous comunication with it's players), but I try to judge all aspects of the games I play.