Those videos are my Chekride preps... i just watch them over and over for like 2 weeks before the checkride, helping myself a little bit with the jepp books... I could say that 80% of my knowledge for my PPL checkride came from those videos... the other 20% by reading... as a result I passed and the examiner was very satisfied with what I did... at least that's what he made me think... Its a great tool specially if you look at them over and over... It makes you be very well prepared for the checkride...
My .02
Jose.