As long as the transactions go smoothly, there are no problems. However, I had a complaint with a company and went through PayPal's resolution process. I wrote out my complaint, and tried to upload two PDFs to their site. It didn't accept the files. I did it again and recorded the whole thing on my cell phone. It didn't work again. I tried calling their customer service and could not get through.
These people have ZERO customer service. They are f---ing worthless.