I have had nothing but great luck with KEH for more than 10 years including a few UG lenses that were really quite nice. BGN ones that we better than most "MINT-" ones i see on ebay. I've only bought a couple of bodies from them, one a Nikon N60 years ago, a Contax RTSII a few months ago, and another a Leica IIIa bought quite recently. All were perfect. With the 7-day no-questions-asked return policy and a 60-day warranty you got little to lose. IMO, unless I can get something off eBay for at least 30% less than KEH I go KEH every time.