I played most of SO5 and enjoyed it for what was there. Sure, I wish it was a bigger budget game, longer, etc, but it was fun and now makes me that much more annoyed when JRPGs don't let me use the whole party in battle at once.
Setsuna was just aggressively mediocre without anything of note to pull me in (SO5 at least had combat and I liked their dialogue mostly happening during player control, and of course SO is a franchise I already have affection for).
Yep, despite Star Ocean 5 being a disappointing Star Ocean and rather safe RPG, it is actually quite fun to play.