I'd almost rather you just say "here's my stuff for sale", but since I did purchase it while studying for the private written, I feel I should provide feedback.
I had a few problems with the software installation, mostly due to my crappy laptop, and this guy was very responsive to all of my emails/questions.
This guy has a real laid back, conversational approach to his videos. That might work for some people, it might not.
I feel his private study guide would be most beneficial to someone familiar with aviation terms (VOR, weight and balance, etc) but very little understanding of them. If you have done any reading on your own (is more disciplined when it comes to studying) then it might not help you much. You can tell that he really wants you to understand and learn the topics.
Final thought, $99 was waaay too much for the private study program. It is honestly worth about half that, and I mean that constructively, not bashing. I might have picked up one or two concepts I was having trouble with at the time, which might be worth $50, but def not a hunj.