The only problem I have is that they take it down for a couple hours on Thursday's (late) to do maintenance and I can't do listings when its down. But it is great for storing listings and saves them indefinitely, unlike ebay. It also allows you to future schedule your listings without paying scheduling fees. I like it and have not had any problems receiving payments.
They also have some nice templates for background and you do not get charged additional for extra pictures listed either.