I like to play a new class from the beginning, especially when I do a special role such as healer and tank, so I can learn with the minimal stuff then add each new thing into the mix as I level to get a feel for what I'm doing and I'm not overwhelmed by an array of buttons.
At the lower levels, BM is very easy (as long as you don't get parties that are crazy about facepulling as I've seemed to keep getting when I tanked lately...though I never minded that on my Pally because all they had to do was run through Conencration for me to get the threat off and I could handle insanely large packs). See a mob pack that a bit out of the way and you want to pull them along with the ones you have? Throw a barrel at them like Donkey Kong.
From what I'm reading out of this thread, though, is that they at some point become like a Warrior or DK in how complex they can be. I haven't gotten that far yet (I've been busy getting my healer to 90 for the guild raid runs that are coming soon), but from what I've seen so far and from what I've read, I'm not going to be disappointed.