Have you had your BB shell faced? I have the SS version which has been in two frames over the last year and a half and it still spins as smoothly as when it went in. My partner also has one on her rigid (which is mostly used for commuting, but has had its fair share of trails) for coming up to a year. She's easily put 1000 miles on it, in every type of weather. I just popped the plastic covers yesterday when I was switching chain rings for her and both bearings are still as new.
How about maintenance? Do you use a chain cleaner? Power washer? Degreaser on your rings/cassette?
How about maintenance? Do you use a chain cleaner? Power washer? Degreaser on your rings/cassette?