Hugely. UG has nothing fun for kids at all -- all text, as you saw. UG has personal anecdotes from readers who have written in, opinions from the authors and their researchers, touring tips, and more. Birnbaum's has a brief summary of each ride, maybe a generic tip here or there about best use of FP or best time to ride, something like that, and that's really it. Birnbaum's can be read in an hour. UG is helpful enough that I take notes while I read it (not for WDW anymore, because I don't need to, but I recently bought both books for our first DL trip that I'm planning. Birnbaum's was fine, but didn't tell me anything I couldn't learn from a quick google. I could also learn the UG tips from google, but it would take longer to find if I didn't have the Disboards, for example. It gave me tips that I didn't know I needed).