I've been buying and trading on MPB for years. Their quality has downgraded and I'll share some of the schemes that they tried to get away with on numerous occasions. The first one is that they don't inspect or clean their gear. I purchased 3 cameras that I just sent back immediately because they were gross, grimy and filthy. So make sure you thoroughly check and clean if you want to keep it. The second is they will try to send you gear that is not the one you purchased and the one that they advertised. They are in the business of trying to send you inferior gear to increase their profit margins and this has happened several times. If you bought a Nikon F lens, they will send you a G, or if you buy a Sport lens, they will send you a Contemporary and hope that you don't catch it. Even when you catch it and demand that they send you the correct one, they will try to send you a less-than comparable lens. So if you bought an excellent condition, they will try to send you a Bargain or Good lens and hope you don't notice. They get upset when you ask for photos of the lens they will ship in return. They also won't offer anything in return for the inconvenience or issues that they cause. They will just say tough luck and if you paid for expedited shipping on their first incorrectly sent item they will send the next one ground.