I was a student of Don Lundby’s and took my RV driving lesson in the Tucson area. We have a 42 ft. 5ht Wheel. As an instructor Don was very freindly, personable, knowledgable and above all patient. He made me feel very comfortable, always corrected in a positive manner, had a good sense of humor, and his directions were easy to follow. Don took the time to make sure I understood what he was saying and if not, he would rephrase until I comprehended. Some of the skills we worked on were; hitching/unhitching, backing, parking, cornering, driving in city traffic (sometimes very busy with construction issues) and freeway. 
In addition, we had some issues with our towing vehicle which was out of commission for a day, Don was understanding and flexible with his schedule to accomodate our needs.
We had some time outside of lessons to meet with Don and his wife Maureen and got to tell stories and share interests.
I would highly recommend Don to anyone who wants to learn how to drive an RV.
I hope you can pass this along to Don.