HH, I am not quite sure what you mean by YOU Tube ???
I would NOT base my decision of purchasing Piano Wizard from you tube???
I actually based my decision on how I think or KNOW my OWN children learn

The children at our school will not be forced to USE the program but it will be offered to them .....
By the way we choose products carefully and open minded...
One of the reasons why our MATH works and we place in the top 1% in the WORLD.. Not bad for a small school of a little over 100 and in the United states ... We do NOT always choose products and curriculum that is considered the NORM or that has RAVE reviews... But somehow the children LEARN..
We use many methods on this board and combined the BEST of the BEST in my opinion.