morthcam58 (Matt) is a perfect model for a salesman on POTN.
After receiving a 70-200 f4 L in the mail, I discovered a rattle within a day or so. Matt offered to pay all repair costs, or have the item sent back at his expense. After finding out the costs would be well over $100, Matt ensured me that he would have it repaired and give me a full refund.
Luckily he got insurance, so the Post Office is likely to pay for all damages.
Anyways, if Matt has something for sale, don't hesitate to buy from him. He offers lightning quick shipping (Maryland to California in less than 3 days!) and communicates very well.
All in all, super nice and understanding guy. If there were a 20 available on the 1-10 scale of camera sellers, he'd be the definition of it.