Good-Person
Captain Junkie
PayPal will not be helpful when you are a seller. Let's say you sold a website and received payment. Once the website is transferred the buyer files a dispute and tells paypal that he did not receive his product. You can end up giving away that money.
Honestly speaking, PayPal does not offer that much protection to the seller and I really do not know why this is so. The fact remains that escrow is much better in this regards.