I have had this heater for about two months. The assembly was easy. The instructions were clear. The performance is everything I had hoped for. Be aware this is a large unit. I recommend assembling it near where it will be used. It is also tall (a good thing). I purchased a cover for extra protection from the elements. I do secure the unit with lanyards when expexting high winds. A tip: When moving it over uneven surfaces like flagstone pull the unit rather than pushing it. Great buy!