Any experiences from KEH Camera store?

I found them through amazon.com and they have some decent deals on used lenses. It's cheaper than B&H so I'm a bit interested. Any feedback before I click 'submit' ?

Link: http://www.amazon.com/gp/browse.html...A1TDKHBC7S48E3

I've never dealt with KEH,but they are supposed to be a decent place to buy used.Here's some feedback on KEH.
http://www.resellerratings.com/store/KEH_Camera_Brokers

I've used KEH for several years for purchases ranging from a Pentax LX to a lens shade for a Retina IIIc. In between came several lenses, viewfinders for the LX, winder for the LX and one for a Pentax MX, etc. I've found their personnel informed and helpful and the items in the condition described or perhaps better. On one occasion I misunderstood the listing and the K mount extension tubes were not automatic lens type but rather for preset. They accepted their return less shipping costs without fuss.

Go for it!