I used to use paypal.
If you do this do NOT give them access to your bank account. Strange things will happen. Money will randomly disappear, they refunded everytime I called but claimed I had done things like "signed up for Skype" (which I hadn't etc...) Luckily it was a seperate account and I finally got tired of dealing with them (They wouldn't let me use my funds to pay an apartment rental in Paris because "it's fraudulent". I called and said the company had a great reputation, had been in existence for years etc... response "we have not paid them before and won't let you send them your money" LOL! I paid them another way and closed the PayPal account. And yes, the apartment was there and just as advertised when I got to Paris!)
As for protection...well... Not so much. One of my friends paid via PayPal for an Ebay purchase, it arrived broken. Paypal's response "the merchant says it was well packed and it must have been dropped by you" no refund. (Luckily the merchant did get the money refunded by the shipping company but...)
Another friend arrived at a villa rental in S. Florida to discover it was FILTHY (with rodents!) She refused to stay there. Landlord said "she stayed" Paypal said "landlord said you made mess, no refund" She's still fighting this one in small claims court!