I have Fundamentals and have enjoyed using the strategies with multiple horses.
As far as watching it... the first time I watched it I was horseless. I liked it at first, but then it seemed to drag. But, I forced myself to watch the entire series. Once I started using the strategies, I really appreciated how much detail was in the videos, although I also appreciated the fast-forward button on the DVD.
Now I have used his methods on four horses and I still go back and review the videos from time to time if I think that something isn't working quite right.
Friends have dubbed me the Queen of Groundwork. Good, but I also would like to be the Queen (or Lady in Waiting) of the saddle.