The rest if fine. The derailleur are harder to set up as they have no float in the jockey wheels like shimano, so it needs to be set up just so. Cranks, shifters and levers are all better made, better engineererd and lighter than xt......fantastic kit.
Seatposts are brill and pedals have sealed bearings, which are easy to live with and have great service life.
The xc9000 pedals are identical other than the cage design, but can be had much cheaper than the newer xc pro, which now go for stupid money!