I started using PayPal quite a long time ago, and since then it has been the only paying system I use. To start with, I want to say that the whole process of registration of your account there, the validation, is pretty fast and easy.
Secondly, everything is secure, and all the operations are protected. I've never faced any problems connected to money lost or stealing. And it's a huge benefit for such a platform.
It allows me to pay or to send money to other countries.
I had a few small troublemSee full review