Playable most of the time means "this game requires a keyboard, so remember to press Steam+X for the on-screen keyboard when you're asked to enter your characte

Playable most of the time means "this game requires a keyboard, so remember to press Steam+X for the on-screen keyboard when you're asked to enter your character name", or "fonts are a bit small on the small screen", or "there's no built-in performance preset, so you'll have to set it to medium manually". Essentially, complete non-issues most of the time.