I have a bag listed now and I have a good (not great, not bad) offer. But the buyer has 0 feedback and wants to use an escrow service. He will pay the escrow fees and the very large international shipping cost which he has already checked into. How risky is this to me? Should I do it? I don't have a ton of selling experience. I just left my first - feedback for a NPB and I am sure I will get a retaliatory - so I don't want another negative from a newbie. Should I say no?