In my experience, their consumer protection is great.
PayPal has been absolutely instrumental for me in issuing refunds with obstinate vendors. Once or twice they’ve issued me a refund after being refused a return/refund when an Aliexpress vendor either sent the wrong item or nothing at all.
I even got them to secure me a refund against the Australian government after they refused to issue a refund after directing me to apply for a tourist visa with the wrong visa process.