4.6
I'm on high-but-not-highest settings and my phone isn't burning, battery is doing fine.
I don't have the words to express my appreciation for the skip and dispatch mechanics, but some of the dailies are a bit too manual for my taste. If I can play for 20 minutes, I don't want it to be on a daily chore.
I'm trying to play without looking at the tier lists, but trying the characters from friends it looks like there's an evident bias.
Lower rarity characters seem to be usable though, and I'm raising and playing regular Asta. Actually, I ended up in a club of Asta fans who are doing the same, somehow. It's more difficult but not impossible, so far.