Personally, I’d say they aren’t too fun. 8.1 is really helping with fixing the ridiculous damage orientation that they have (really strong burst, horrendous consistant damage), but it’ll still be a bit skewed towards burst.
Gameplay wise, I really don’t enjoy the energy. Monks used to be constantly attacking, maintaining Tiger Palm’s buff while using BoK and getting either the DoT or the heal based on positioning. FoF used to hit much harder in AoE. Touch of Death used to be an amazing execute that felt awesome. All that’s gone now.
WW just feels energy starved way too frequently, the damage feels awful outside of burst, ToK being used for damage feels bad, and Vivify is terrible for self heal.
BrM is really good and feels pretty fun, not to mention RJW really helps keep AoE threat. MW is really fun gameplay wise imo, I love Soothing Mists interaction with the other heals.
Only part of Monk that is just bad is Windwalker.