I Too have purchased numerous items from Carsten over the past two years. The first couple of times I was very pleased with the items as they were indeed exactly as described. This last time however, I purchase three Campagnolo Super Record items (pedal set, BB, and rear Derailleur) which were all described as "perfect" from a "showroom bike, never ridden." Unfortunately the items where all clearly used with light wear and a few scrapes - not what was agreed to and certainly not worth the $$'s I paid. I sent a diplomatically worded email to Carsten and he replied that he "felt they were just as described, but, would take them back for a full refund." I sent them back and about three weeks later my paypal account was re-imbursed. I've been gun-shy to buy from him since but at least he provided a full refund without any arm twisting.
Eric "for what it's worth" Elman Somers, CT