>>42471060ex blue archive player here:
-music is great
https://www.youtube.com/watch?v=OigowtGVEishttps://www.youtube.com/watch?v=nGMOyS2QCzw-most soulful chibi models I've ever seen
-K-On like, slice of life vibes
However I wasn't too into the grindy gameplay and didn't have enough time to play so I dropped it.
Regarding gacha in general, it depends. Some people are gambling addicts, others just really really want a certain character so paying is "just" a bothersome neccesity to acquire them. Whales like to flex with their money on free 2 play peasants. Others like to do pure f2p challenge runs on gacha games, etc. Personally I spent some money twice.