These chairs were SUPER easy to put together- there were done in less than 30 minutes. I procrastinated for no reason, only 8 screws per chair. We used a drill and a hex wrench bit and it made it very easy to assemble. They have a really wide range of height and quality is good, there are some sharp edges at the back of the arm rests that I thought were metal but after checking it out closer looks more like plastic flashing from the plastic end cap. The base cover is plastic as well, which I think is fine because it shouldn’t get much interaction. They seem very sturdy and should last a while!