I use a B-17 and just love it! At first I was super skeptical but the B-17 was lightyears better than the stock Bianchi saddle that came with my bike. I've had mine on for over 4 years and it still feels really nice. Just a tip for those of you with the Brooks...the instructions say to only tighten the saddle about 1/4" or so after every year. Over-tightening or under-tightening might be the key as to why some don't like the saddle (among other things)