I've got a set on my mountain bike and I think they're great. The bike (Porsche FS) came with them set up perfectly and I haven't felt the need to touch them since. The only reason that I didn't install a set on my last tandem was that I had to choose between Maguras and STI. In the end, I decided that the only thing that brakes do is slow you down so I went for the more convenient shifting.