Well I certainly don't get paid by PowerDNN - in fact I just recently canceled my personal account with them. When I first started with DNN I used a PowerDNN account as my development install. I recently had the time and the knowledge to build my own localhost development machine so I didn't need the personal account any longer.
I have used PowerDNN for three years for both personal (shared hosting), business (dedicated server), and client sites. I can say without a doubt the support is above and beyond, their equipment and methods produce very fast sites, and their tools (Plesk, site optimization tools, site cloning tools, etc) are the best. The fact that they specialize in DNN is a big help. Where else might you have access to the owner of the company for support issues? Not that you need it as I have observed that the owner's attitude towards top notch support has trickled down through most of the employees.
Is there room for improvement? Of course - nobody's perfect. I would like to see a higher allotment for storage space - but since they use top of the line mirrored raid drives that could get expensive for them. Are there other hosting companies out there that are good too? Yes, I'm sure there is. I have researched a couple of them just in case things ever change at PowerDNN. But as of right now, I have not found one that tops (some come close) PowerDNN.
Why would the origninal poster and myself write such reviews if we weren't paid by or personal friends of the company? At least in my case - when you feel like you are getting top of the line value and that company goes out of their way to support you, you naturally want to let people know about it.