First impression when opening the unit was that the quality of the materials and construction is very good. Small, but solid and sturdy. I live in the northeast, so I was initially concerned that the unit would be too small for my 2 car garage with 10 ft high ceilings, but so far I am very pleased with how well it can get the space up to a comfortable temperature and keep it there without having to run constantly. The garage is reasonably well insulated, but the overhead doors aren’t great, so once the temps outside drop into the 20’s (Fahrenheit), we’ll see how it does. After running it for just a few days with the temps in the upper 30’s, it seems to be doing it easily, so feeling pretty confident that it will be good with the colder outside temps too.