I gave it a 3 because it is mediocre but there's some weird OTG stuff and broken combos here and there that are a lot of fun to exploit. There are far more moves than you would need to use and some have some weird interactions that don't feel super well-thought out. If you're an experimenter who likes jank, this game is more like a 4-star game for being a curious look into what half-baked systems can result in.
Also honestly really great if you're a fan of the first Jojo's arc, it shows it all.