Is it safe to buy things on Ebay? how safe it is really?

I have bought lots of things off ebay and have only had one dispute. Check the sellers feedback score and some of the feedback comments. This will give you an idea of what sort of person/company you are buying from. Always pay using Paypal, that way you have buyer protection. Keep any and all emails from ebay/the seller. If you are not happy when the goods arrive, contact the seller straight away. If you get no satisfaction, raise a dispute with ebay/Paypal. Check the 'Help' pages on ebay, these give lots of valuable information. Good luck.