I have owned, used and love most Brooks saddles including a B66 with springs, Brooks Pro, Brooks B17 Special, Brooks B17, Brooks B17 Narrow and a Brooks B15. I absolutely hated the B15! It was too wide for appearance sake and very uncomfortable.

I did not take the time to break in the B15 but none of my other Brooks offerings were all that uncomfortable right out of the box. But not the B15.

Anyway, the B15 was not for me but might be perfect for someone with a wider rear end.