It's a cool concept! There are many different systems, like the upgrades, the top-down battle and thinking about the right things to say or buy for your potential girlfriend.
The top-down part felt particularly fun and satisfying to shoot enemies, the music there sounded good too. I haven't played terribly far; but I wish there was more of a tie-in between the top-down shooting bit and the dating sim part. Right now it felt like I was playing two separate games.