Finished Act II last night at level 26. So far it's been a breeze with my guy.
Just to point out, I was doing some cross compare with Kabob last night and was very surprised at how far he had gotten with his gear.
For my level 26 monk I have around 968 armor, and 2.3K health. I have 163 dps listed as well. I don't have everything yellow or even up to my level. I have yet to buy anything off the auction house. I basically plow through most everything I see without even being close to dying. Heck, during the end boss fight of Act II with
I had to go afk for about 2 minutes due to some GF agro. I came back still alive and in the middle of the fight at only half health. Setting up my templar to heal me helped I guess. That's how easy it has been with the monk.
For a side note, I've been watching people stream as well. One group has a bunch of level 59 and 60's doing hell runs, and trying to make their way through inferno difficulty. The only champ between a Barb, Monk, Wizard, and DH that almost never dies is the monk. The DH and Wizard are constantly 1 shotted by any gold or boss. Rare packs destroy the barb, and the monk just stands there tanking away with no problem. The monk only dies when there is 2 or more rare packs that jump on the group and he gets locked down by a jailer or wallmaking rare so he is unable to kite.
The monk doesn't have the DPS of the wizard or the DH though. He is about par with the Barb but MUCH more survivable. Pretty much everyone on the stream comments how much more OP the monk is late game compared to any of the other classes.
Massive CC, massive tankiness, and pretty damn decent DPS.