Bought the full edition on sale. While it has a good roster (again, bought the whole thing for like 15 euro) and the interactions between said characters are fun if you're a fan of these franchises (Only a Persona 4 fan personally but hey the other characters look cool at least) the gameplay itself is very simplistic and isn't great outside of wanting to see some flashy moves. It also has the worst character selection screen I've seen in a video game, with multiple scrolling wheels for each franchise represented, making it so people can't see the full selection of characters.
Overall, there are many other fighting games worth your time, play those instead.