Absolutely brilliant guitar teacher--I'd recommend Ross to anyone! I took my two kids (9 and 11) for beginning guitar lessons from Ross. Starting on day one, I saw that Ross approached kids lessons differently than any other teacher, focusing on a solid musical foundation and lasting enjoyment. He never pressured my kids, established a sensible practice schedule, and made each lesson fun. They're learning basic music theory that will apply to any instrument, and will last a lifetime.
After watching Ross teach my kids for several months, I was so impressed with his method that I decided to take a few lessons myself--primarily to better master the fretboard, as well as learn enough theory to play lead guitar. Although I've taken lessons over the years, Ross has transformed by playing in a simple, logical, and easy-to-follow manner. I've really mastered the fretboard, while learning fingering techniques to improve speed and accuracy. Ross's approach to guitar (theory, technique, practice routine, etc) is fundamentally superior to other instructors, and I eagerly await his first guitar instruction book.
Bottom line: Whether children or adult, popular or classical guitar, heavy theory or simply learning a few guitar licks, Ross Trottier is an exceptional instructor. We're lucky to have him in Colorado Springs!