Power wise, havoc at 11 is no longer playable in timewalking unfortunately but still a beast in regular dungeons. You have a pursty playstyle where you want to collect mobs together to one one shot with eye beam, and juggle the cds. Frush can be used as both a mobility and aoe ability, and ur single target dps is unironially pretty good.
As a pve dh main, DH at 11 is meta due to dungeon skips. Usually tw/dungeon twinks only have two variables to worry about which is character power and speed, demon hunter has a third which is skipping. Eye beam is busted by itself so it's power I'd put at B or a low A, (main problem is lack of spammable aoe), speed with frush, double jump and glide is great even though it will get outrun by druids and such for pure racing i think, and a huge pool of dungeons has skips if you know where to look.
It's getting a huge mobility nerf in midnight (loses one fel rush charge) which actually makes a few dungeon skips impossible without more advanced tech but it's by far still the most OP class still if you're just going for dungeon completion. Nothing really beats a 20-30 second underbog on a dh.