Assembly went fast, everything fit perfectly with only one exception, the door fail to fit well. The door attaches to the hinges by first slipping the top shaft into the hinge, then the bottom (which is shorter.) The top shaft has a key embossed into it (to prevent accidental removal) and the door must be rotated to the near full open position and wiggled gently back and forth when sliding the shaft into the top hinge. Even so, the shafts would only go in approximately half way. I solved this problem by rotating the door open and closed, over and over until the hinge got worn enough to fit. After the shafts seated into the hinges fully, they squeeked loudly when opened and closed. I sprayed the hinges with \"WD-40 Dry Lube\" and that's all it took. Door opens smooth and quietly now. Overall impression of the quality of the machine and cart is extremely positive. It appears that the manufacturer paid attention to every detail. Every surface is either painted gloss red, chrome, stainless steel or natural aluminum. The side windows AND door are tempered glass (many of the competitors use cheap plastic doors.) I did not see any blemishes on any painted surface. The reason I chose this machine over others, was NOT based on how it makes popcorn. Rather - how easy it would be to clean. As far as I'm concerned, cleaning is more important than how it cooks popcorn. (They all make popcorn equally well, but cleaning the interior of the kettle and under floor should not require tools for access.) To this end, this machine has a couple of convenience features I haven't seen being used on competitor machines. The first (and very important) is the lid on the top of the kettle. This lid which contains the stirrer mechanism and it attaches to the kettle with wing nuts —— not screws. This makes the top easily removable by hand to clean the inside of the kettle, all without tools. Competitor machines require a screwdriver to remove the lid from the kettle, so you know that's not goi