Have had heater for only a month, so I can't really determine quality of materials. That being said, it takes only minutes to assemble an appears to be well made. Unit delivers a nice radius of heat and is simple to use. I like the integral table. Although it is not large, it provides a convenient place for your drink of choice. Regarding material, I did speak with a representative of AZ Patio Heaters and he assured me that unit is made entirely of 304 stainless steel (except for aluminum reflector). If this turns out to be true, I expect several years of good service from heater.
Rating: [4 of 5 Stars!]