I bet it depends you just have to read the descriptions carefully and study the pictures. If you're not happy when it arrives you just have to complain to the seller and you are likely to get your money back if not you can open a case with ebay buyer protection. Always works for me ^^
I love buying stuff of ebay it's so much cheaper than in norway. actualy i just read that the capitol of norway is the most expensive city in the world! Surprises me it's not even nice there. (My home town is so much better.) But the result is I allways feel so rich when I'm buying stuff on ebay because I can buy everything I want with out thinking about the price.