Tallima: ...they try their hardest to side with the buyer to keep them viable and keep buyers safe. So I use it as a buyer to keep safe.
This is a very good point. I've used Paypal quite regularly for about 10 years, and from my memories (on the buyer's side) of their 'dispute' system, I know I'd be wary of going through them if I was e.g. selling something on Ebay. As a buyer, however, Paypal is probably about as safe as it "gets", as long as a strong, unique password is used.