Parking fees are wrong indeed. I tried one month, just to see, and I must say that the clicks and income were not bad for a few names. But they are not flexible at all for payments outside the US (no Paypal, and even no way to credit the earnings to my GoDaddy account, something that I find ridiculous for a registrar): this means that, since I stopped the service after one month, I was not even able to get my (small) proceeds... Typical GD, unfortunately...