I started it a bit late because I started playing “Shantae and the Pirate’s Curse” during the maintenance and lost track of time 
That said, I made a Timerunner (another Bikini Warlock, obviously!) and got her to level 30.
The way they skip the table mission quests made me giggle lol
Also I tried that Heroic World thingamajig, everything was working well until I got roflstomped by a random Doomguard. I don’t know where he came from. It wasn’t a Doomguard area. It was that place where the Nightfallen eat baby Dragons.
Then I resurrected and got roflstomped by a different random Doomguard. I know it wasn’t the same random Doomguard because it was smaller.
So I thought, maybe I’ll come back to this when I’m stronger lol
Overall, I had a positive experience. Except the random Doomguards.