I've tried using mulepool but sometimes you post on their website and have to wait several months before someone responds. They never answer their emails, their phone number doesn't work, and not only do you have to pay commission to the mule, which I agree with, but you have to pay mulepool commission for the use of the escrow account.
I found Trice, who works for American Airlines, and flies back and forth to be a great help. He's brought two friends of mine and me several things and his commission is very reasonable. Send me a PM if you want me to pass on his contact info. Or if you search the forum you'll find one of his posts.