I have watched about 15 in 4 days and they are all really good. Have learned so much from them. I like to play 6 max nl along with the HU sng's and what I have noticed is that I have gotten so much better at hand reading in 6 max ever since I started watching the HU videos.
I'm glad to hear that you're learning so much.I've heard similar things from MTT and STT+ players. You can definitely learn a lot about postflop play very quickly when it's correct strategy to play a lot of hands in so many different situations postflop (as it often is in heads up sngs).