I've tried to use MPB but never found their prices too great. However, perhaps my estimate of the value of the items was a little more than realistic.
For hassle free, they are good. Compared to the same transaction on WEX recently for which I quoted, MPB were better
Also Facebook has a lot of photography trading groups in my region. The bonus of these are that you can trade face to face if you wish.
Talk photography forums has a good trading system and community in place but the prices on there are quite aggressive as everyone is after a bargain and will haggle you down I think citing ebay prices, then deducting fees etc.
however, if you use paypal gift or BT then you are going on trust, without ebay's buyer protection.