Well I am happy to say that my install went very smoothly without any problems. The tech happened to have an HR22 -100 in the truck, so I lucked out in that respect. Installer was very competent, courteous and knowledgable. On the initial setup the HR22 did lock up( I thought, UH OH!). He reset the receiver and all was well. I have been using my system for a little over a week now and I have had no problems with the HR22. No missed recordings, etc. I am getting signal levels over 90 on nearly all transponders. So far, Very happy.