I was trained and taught to service Munchkin. I have a mastergasfitters license, master plumbers and master hvac. I even have a conversion burner gas license. I have found in over thirty years of service the simplest systems work best because simple people are more plentiful than complicated people and complicated stuff. Could it be that the majority of people refuse to invest in $1,500.00 analyzers and thousands of dollars of special instruments to actually do their jobs? Could it be they stop investing in education to stay current? I love the kiss method, but I have also found technology gives us more options. The trick is to embrace it and use it properly and hire people who know what to do. All products from the simple to the complex have problems. All maufacturers have had lemons in design and in units. But the first step is in the installer. Not all products can be applied everywhere. Choose wisely. Two, most installers barely have a high school education and it each day goes by they get more stupid as they do not train and educate. The consumer often gets the raw deal, because these people blame anybody, anything but themselves for the problems they face. When we blame the wrong thing we fail to work on the real problem. I can make a bad product look good or a good product look bad. What I can't do is get people to make better choices on who they hire because they are often too lazy to shop properly. You can't hire talent on low price and no background checking. If all you want is someone to light a wood log, you might just succeed with anybody, but in the area of combustion and today's technology that has been forced upon us with government standards and high cost of fuel and poor building designs, you have to hire experts. Without fail, every job I have gone on with a problem, had 3 issues. the part that failed, the thing that caused it to fail and lack of maintenance. I am not a fan of munchkin because it is complex and requires special training and tools, but don't most automobiles fit that same category? And I buy both. Heck, my whole industry now requires the equivalent of a college graduate to qualify for the work we have to do. If I have a choice I look for simple product that best fits my need and apply it properly. This alone eliminates 90% of service problems. Installation is the 100% most important part after the sale. It is here a 1/4" off level or a wire not tight, or some lack of knowledge, integrity and persistence to make it right ruins the project. And then even if it is perfect, we begin to use it and wear it out. Maintenance proper and complete at the full price required gives the consumer the best chance of having a good experience. If you can't afford the maintenance, you can't afford to own it. And yes even the best and simplest can be complicated by improper use of a thing. So I believe it when some people call this product junk and some call it great. I usually find the "junk" is a result of an incorrect choice, improperly applied, installed, used or serviced. It are these facts I have based and built my business on and why I call the plumbing heating and cooling fields recession proof. Good luck to all. Thanks to all who provide positive helpful comments. We all need to hear them all good and bad.