Don't just take our word for it. Here's some nice things people have said...
"Perfect little nuggets of knowledge that can help a developer on the path to doing some more advance programming/development for their apps"
"I don't always have time to spend a week in class, but I always have time for a 3 or 5 or 10 minute screencast to help me solve a problem or learn a new technique."
"The content is excellent, reminding you that even if you think you know iOS development inside and out you can still learn a tremendous amount... You guys rock!"