Op gave me a review copy. The speed was quick. It was just a list so the speed doesn't really matter to be honest.
The list did have 4.4 million URLs but not all of them were auto approve. I did a blast with 50 connections, 20 private proxies and a good computer. It was good that Op divided the parts up to prevent a really huge text file. That was professional.
Overall, I got about 50% success rate and I tried it again and got around 40%. However, that is still good although it sounds quite low. The only drawback to this issue is the price. As post says above, from $5 to $97 is a big jump. I would say the list is worth around $30 at the max. No more.