We brought 2 to go either side of tv unit. Webfound them simple to put together.. a lot of screws so would definitely use an electric screwdriver for ease! 
Once up they were not stable at all, so we had to drill a hole through the ends and secure them to the wall, they are completely fine now and stable! Wouldnt say they were worth the £102 each we paid for them though, but happy enough with the purchase.