Nice! I just got my replacement pair today - due to loose speed hooks. J. Crew treated me right - no questions, just exchanged them and overnighted the new ones to me. Hope you enjoy yours, I know I will enjoy mine.
I think that J Crew's "roughed-out" suede is the same as reverse chamois. There's a discussion a couple pages back about chamois vs. reverse chamois with pictures of it worn in. I have the All Weather Walkers from Unionmade in reverse chamois and love them. I think it's a lot tougher then suede. Hope that helps.