Ya, I bought this DVD in the spring. I think it is worth $40, especially if you are training on your own.
The most useful parts for me were exercises on strengthening your shoulders and the warm ups. It has a section on motivation, which ends up being sorta funny in that it uses two extreme riders to make a good point about keeping focused.
It also comes with a 18 page pamphlet that compliments the video, detailing different types of workouts and when to do them (in season, pre-season, off season, etc).
The overall production is ok, the sound is good, the editing is fine, and there are just a few typos in the booklet.
If you're working with a coach or trainer already, it might not be a great investment. Otherwise, I recommend it.