This is the first Moon guide we are using, and definitely not the last.
We went on an 11-day vacation in Minnesota, and this book turned out to be an irreplaceable companion.
Not only did it point out the usual got-to-see places, but also gave many little tips about unique places and things to see and experience (such as the Mohair goat farm or the "Rhythm of The Rails" show), which made the best moments of our trip.
We also loved its sense of humor, which made it also fun to read (as opposed to your typical laconic-written travel guides).
Highly recommended.