I've used them for selling physical products. With that I had no problems, because they could track the process, but I had to fax a lot of papers to them.<p>The problem is when you are selling non physical products, that's a different story because they can't guarantee security.<p>What is evil to me is that once you are blocked, they can't do nothing. A common point I hear from people who have problems with paypal is that although they have sent fax and spoken with real people, they can't re-abilitate their account. Another scaring thing is that most times (this is very common through ebay sellers, which I was one) is that they can keep your money! So imagine that you go live today and you sell 100 copies of your product for 30$ cad, and your account gets blocked and they keep your 3,000$, that's the reason I'd like to avoid dealing with them in the first place.