People love Paypal until they meet a problem using Paypal and then realize how unfair the Paypal system really can be.
Paypal does not offer the blanket protection that many buyers assume that it does. There are many ways that buyers and sellers can avoid their responsibilities under the deal.
Buyers need to be aware that Paypal will help to ensure that you get a package in the post but cannot help if the item in the package is not what you actually bought.
Sellers need to be aware that Paypal can routinely refund your money to buyers regardless of the facts on the case.
The whole concept of Paypal is based upon the 'security' that buyers are looking for and for that reason Paypal often favors buyers when issues arise.
True buying security comes with ensuring that you inspect goods before you release final payment and ship goods. If you cannot visit the seller yourself then pay an agent to do so on your behalf.