This chair, we have less than two months. Aside from the fold in the fabric on the seat, over which we have initially blind eye, he has now broken on both sides under the seat, and this, even though he was only exposed to minimal loading. For the stability he m. E. deserves no star, although this - if I remember correctly - also a criterion for good judgment at Stiftung Warentest was. He also feels compared to our other children swivel chair, which was a branded and more expensive, very light and "plastic moderately" to. The other chair is already 5 year old and here is never broken something. The comfort was sacrificed - as long as the chair was intact - absolutely fine. Ergonomically it seems to me the more expensive chair that has its already very good test results, equivalent. Therefore he gets three stars.