After much procrastination I finally leveled my DH to 120 after patch 8.1 went live last year. At 392 ilvl I Literally feel like a god in M+, I can out dps other classes 10 ilvls higher then me and dealing with explosives this week has been painless.
For the 1st time this xpac at least 1 person every couple of Dungeons asks me if they can add me as a friend to push keys with them. It feels good to be wanted but obviously I know they wouldn't care much if I was doing terrible dps and mechanically not doing things right.
Considering Illidan was my fav charactor since warcraft 3 I don't know why I didn't level 1 sooner.
Havoc demon hunter is one spec blizzard has really delivered on.