I have been on Paypal for 7 years. Using it just to receive MS payments I've had no problem. Using it for other purposes had caused more frustration than I could possibly explain.
IMO, they are an unorganized company at best; or theive if I choose not to give them the benefit of the doubt.
They are a great company to deal with if a problem never comes up. As soon as you have a problem though they are a nightmare. It can literally take years to get it worked out.
They receive interest on your money so if you are an eBay seller, they will come up with any reason they can to hold on to your money. And they legally can hold it for 6 months and do not have to give you a reason.