I had zero knowledge of heating and air conditioning. I completed the nine month course and RSI helped me find a job only after 4 weeks of graduating. The courses were not easy but the instructors were always there to explain and help me understand the material. The hands on training really mimics the real thing. I use what they have taught me everyday. My service manager at my current place of employment says I have the knowledge of a 10 year veteran. That is awesome. I owe it all to my professional training at RSI.