The Shark powerdetect vacuum was very easy to assemble. It comes with a Quick Start Guide and  an Owner's Guide where it shows how to assemble it, how to use it, and how to maintain it. I love how powerful the suction is. There are 4 functions buttons: Detect, Hard floor, Carpet/Low pile, Thick Carpet/Area rug plus the Power button.  I also love that it is bagless. It comes with an odor neutralizer cartridge and 3 attachments. The vacuum moves with ease, however, it is heavy.  The cord is 30 feet long and heavy duty.  Overall, I am happy with this vacuum, just wish it was lighter.