Assembly was a frustrating experience. The guide holes were not always drilled not were they in line when they were drilled. This is compounded by the hex key given, which is of inferior quality: as many holes were not lined up, I had to push harder to get some screws in as as the hex key was made of a softer metal, the sides of the hex key deformed in the assembly process and I had to find my own. As for the parts that used screws, a power tool is highly recommended to make things easier. Overall, I'm okay with this item but I anticipate having to replace it in 12-18 months.