Item: 300mm f/2.8
Mike's responses to my PM's were timely. He had already committed to another buyer, who had since gone incommunicado. Still, rather than accept my offer on the spot, he pinged the other buyer again, and gave him a fair amount of time to respond. That struck me as very fair to all concerned.
When my PapPal check cleared, Mike said he'd mail the lens "ASAP". He wasn't kidding; I had a tracking number in less than an hour! Lens arrived well-packed and in excellent condition, just as described. An honest, fair, and reliable seller!