The only problem I ran into some time ago when using paypal was that I was receiving alot of gift payments from people and I had an issue where paypal locked my paypal account and froze funds which were in there pending a money laundering investigation.
It caused me a couple of weeks inconvenience as I had to prove exactly why I was receiving all these gift payments.
They obviously weren't happy that they wasn't getting their cut from goods payments. XD
Good luck with your sales.
