I still don't know how to feel about episode 5. It feels like it introduces much less new things than previous episodes, but maybe I'm just remembering those wrong.
Anyway, Hero is really fun and definitely feels OP. Which is a good thing, I guess, since many other classes are OP as well.
Got mine to level 53 (unlocked lv 70 cap) and since I can join SH EQ now, getting to 75/80 (do we know what the requirements for 80 are yet?) shouldn't take long. I'm glad I stocked up on those triboost 50+ donuts from the last event.
Story didn't go very far and I'm still not sure what to think of buster quests, since the only one available now seems to be the one in the story, which is basically a tutorial (maybe I missed something).
I like the new system allowing to join quests across different servers, but it doesn't seem like it's trying the put you in the fullest room possible. I don't like the fact that "all blocks" is the default option, because it makes mashing to get a full EQ room harder.
Pro tip - once you clear all available ep 5 story, definitely give Ombinus Quests a shot, it's mostly viewing all cutscenes which you can skip and it rewards you with a ton of SG.