just bought an EX nikkormat body and an EX nikkor lens from KEH.
spoke with rep on the phone and asked some question about their mechanical inspection process. he said that each camera was checked out mechanically with the shutter and light meter being tested on machines for functional accuracy. so, apparently the grading is more than cosmetics.
anyway, with the return policy and 60-day warranty, how can one go wrong? shipping w/ insurance was only $10.50.