After going through the Digital Photography Success I have to say that it is filled with really good information for getting better at taking pictures.
It covers information such as how to take better photos and be more creative, getting better at the technical part of photography, and other stuff essential to getting good at photogrpahy.
It covers a lot of different types of photos to take such as flowers, children, pets, night, and even fireworks!
The main problem I had with this eBook is the price. I'm probably sounding kinda cheap but I really don't like to spend over 30 dollars for an eBook. Especially since the ebooks have information on photography you could get for free at a public library.
From reviewing a lot of photo eBooks, I have to say the best value ebook on photography is Photo Techniques eBook (phototechniques.info/ebook.html) that's only 29.97. You can, of course get the audio program as well for a LOT more money.
Conclusion: Digital Photography Success is a good eBook but nothing special.