Paypal is generally a safe way to receive payment. Just ensure that you follow the rules of paypal so that you can receive whatever protection they offer.
Like any other service, there are those that complain about it and the fees they charge. I have been using paypal for well over 5 years and I have had very good luck with them.
Be careful if someone sends you a link to register or respond to.
Go to
https://paypal.com to register. Type the address in your browser directly. Don't click on links in emails as they can still be spoofed.
Next register. Paypal might send you an email, but they will ALWAYS (and I mean ALWAYS) use your first name that you used when you registered.
example:
Dear Paul,
Thank you for registering with Paypal.........
IF for whatever reason, your account is suspended, cancelled, compromised, etc... You should ALWAYS type in the address into your browsers address bar FIRST
https://paypal.com and then correct or updcate the details (if actually needed).
Hope this heps.