I paid a total of 15800. After I put it together, it was obviously going to be too huge for someone of my height (182 cm). 15 cm can be measured from the very top of my head to the very bottom of the headrest. The assembling is not a very challenging process. To get into mortgages, I had to put in a lot of work. Not at all creaky. It works as it should every time. The wheels are either made of rubberized or soft plastic, both of which have an elastic material added to them. The crosspiece is made out of one piece of solid plastic. The armrests have a cushioned feel. The chair is maybe too large for someone of height 182 and weight 70, but other than that, it's fantastic.