I have to say it is freaking awesome! It is 2 1/2 hours. The first part covers everything about the Nikon flashes-- the technical aspects of stuff like CLS, i-ttl, master, slaves, working with mixed lighting, etc.
The second part, about 1.5 hours, covers using the technology in the field with some complex lighting issues to deal with. There are 4 different shoots/locations. Joe McNally does the shooting and Bob Krist is there assisting him and asks Joe a lot of questions to help you understand Joe's thought process for each shot/set of shots. Some of the stuff they try doesn't end up looking good, they show that and then fix the issues by adjusting some part of the lighting till things look good. It was nice to see they had to do some tweaking and tuning, and explain it, to get the shots the way the wanted.
The training video Nikon put out a few years ago felt more like a very cool infomercial. It showed you what can be done with Nikon's CLS/TTL but not how. Their new training DVD is just that, a training DVD. They use the flashes in very creative ways.
If you watch the DVD, take some notes(do that!!), and practice what they are showing you, then you will end up with a solid understanding of Nikon flashes and will be able to use them in new ways you never thought of before.
The only thing I wish is that when they reviewed each image at the that the metadata would have been displayed.
Thx,
Scott Baldwin