I completed the AOS Mechanical Engineering degree in a relatively short time ” less than two years as opposed to traditional Associate Degrees “. RSI combines a classroom and hands on approach. You learn what you actually need for a real career in HVAC. Begin with the basics and build upon your knowledge as you progress. It is not all classroom nor hands on which makes it easy to stay engaged and simple to comprehend. I believe RSI offers the feel of a small and tight network off staff willing to help but also the feel of a large quality curriculum. If working with your hands is what you enjoy RSI is worth a look into.