Admittedly, my rating is harsh... I will explain... First, Tech Support was great, and the online videos are awesome! However, I ran into 3 issues: 1) their hours of operation don't align well with my schedule on the west coast, so it took me several weeks to call them at a time I could actually troubleshoot the ignitor with someone. 2) the menu on the HP22 unit has a terribly dated and confusing interface, so even though their videos are great, the UI is so bad, I don't trust myself to follow their instructions. 3) ignitor compatability info on the website was incorrect, and I amost purchased the wrong part several times trying to roll the dice and do it myserlf. The Gen 3 quarts ignitors are rated at 30k ignitions, while the old steel ones are about 1000. That is a HUGE difference. The Gen 3 part works with my stove, but was not listled on the website. Because I was unable to connect with tech support more quickly, we ran our furnace for a month. Our heating bill doubled! Accurate info on the website is critical when your have such little availability, especially for people on the West Coast.