As long as you log in to your paypal to send the money. They could send you a link to pay, but I never use links. Always go direct to your paypal site, then put in the paypal address you are sending payment to.
Paypal is sorta like a credit card, but to me not as good. If you pay these people and never get your merchandise, Paypal can put a hold on their account for your money for 20 days, then if you don't get your money, you can escalate - it's just a hassle really, but I think you can eventually get your money back.... it could take longer than a credit card. You will have to prove to Paypal why you are disputing the charge.
I really wouldn't try it though. I'd wait and see if anyone else has used them first. LOL It really is just so many scams out there, you really do have to be very careful!!