Always look at their history!! Always always!! I always go through and read the reviews that are left negative. Hehe...
But sometimes, just because the reviews are great....some good sellers turn bad.
I'm ebay addicted and have been for years...about 4-5 years now. I never had a big problem.
One problem I had was ordering a Korean series and there was a duplicate CD in there. I contacted the seller and she wouldn't respond. I placed a dispute on her, she totally ignored. Weeks later, she was gone. Closed her account and all. But I just left it at that. It was just a Full House series for my sister. She didn't enjoy it much and I didn't care much for it. Haha ^_^