When this arrived, I was a bit put off by the number of individual parts that needed to be assembled. However, the manual is excellent, and with the help of many youtube videos, I assembled the unit in two days. The first print of the provided files was a cube, which I started. It actually printed very well until the roll of filament became entangled in the back of the printer, and that was the end of that. Since then, I have not been successful in getting the prints to stick to the bed. The problem seems to be that the hotbed heater is turning off as soon as the bottom layer is printed. This is a coding problem tho, and not a printer problem. The whole thing appears to be very high quality, especialle for the price!