Does PayPal suck or.........?

I recently signed up for this supposed "best CC payment system on the net" and everyone who has tried to give me money through paypal has had trouble with a low amount limit in which they can send. Now what is the deal. Is it me or paypal or the customer. I've tried to contact PayPal, but haven't gotten any response. This really ticks me off for obvious reasons. Can someone offer any help to this problem because I have mucho frustraion setting in!!!