Good, mostly, but careless in what they ship out
I've mostly had good experiences with KEH.com - except...
My first order was a Mamiya RZ67 Pro II. It came with the focus knob and shaft of one side at a 30 degree angle off true - obviously dropped, the damage unnoticed or ignored and shipped. They replaced it, the second body was quite good. Frustrating.
I just received an order today. A Canon P Rangefinder body rated at "EX", and 100.00 more or less more than bargain rated bodies. At the same time I ordered a BGN 50mm 1.8 lens.
The camera body has a dent in the top just to the left of the viewfinder port. The front of the camera is bowed out and the viewfinder port canted to the right 3 to 6 degrees. This is EXcellent??? This is significant impact damage to a mechanical precision instrument.
The bargain lens on the other hand I would have rated excellent - not a mark on it, smooth focus, clean glass.
The rating is made and then the camera consigned to the warehouse. In shifting stock or in packing, the stuff can be (and in two cases for me have been) damaged and either the damage is ignored at shipping or no one qualifies the order before it is packed.
I've had many orders with no issues. And they are shipping out a second EX rated body today. But should not happen. This is very obvious damage and they don't see it. Something wrong with the process.