Details matter.
PayPal does not protect you against scams, nor does PayPal protect you against bad judgment.
Buyer protection is pretty much limited to non-receipt.
If you receive the but don't like it the outcome is uncertain. If you win a dispute you need to return the item at your expense. Seller could take issue if the item returned isn't as new.
You could win a dispute but loose your money.
The goal should be to make sure the is no reason for a dispsute, so do thorough research on the seller. Ask seller for address and phone number; then phone the buyer and ask whatever questions you want. If you have any doubt about the seller, don't count on PayPal to cover for your mistakes.
