Personally I think it is better to learn HTML codes yourself and make auction listings as they can be a lot more custom. Let me explain...
You can use the 30 day free trial but after that is up, use a free HTML code maker such as auctionpro & as you go along pay attention to HTML codes it automatically pastes for you & before you know it you have a basic idea on how to do things. After you get down the basics, you can place media players in your listings with background music & much more like my listings!
#1 Rule: Never Pay a dime to those Auction Hosts when you can do it yourself for free & 1000x better.