I bought this desk chair to replace a column which kept overflowing. I hoped that the "German quality" would come to my rescue. There I am disappointed, certainly mounting is not too difficult but some washers are not suitable at all and in the end, after just one month of use, it begins to crack him too. In addition, given my weight (100Kg) I expected something sturdy and comfortable at once, especially from Germany, where there are not all that skinny people and again I am very disappointed because the long period sitting at my desk become painful, so I have to make often breaks ;-) Cynics will say that for this price you can not have something good, it looks like it's true and that's a shame.