Magura MT4 brakes

Anyone have experience with these brakes? I wasn't happy with the brakes that came with my bike, so the shop "bought" my brakes and are ordering the Magura MT4s for me. They should be in and installed next weekend. The shop manager races Jamis bikes and he recommended the Magura, but my other choices in a similar price range were Hope XC2, Shimano SLX and Shimano XT.

Here's where the girl in me came out, the Maguras matched my bike the best and looked good with the bike's color scheme so I went that route.