The product arrived in a damaged box. For this kind of product, it is necessary that the cartons are more sturdy to withstand after multiple manipulations before receipt by the customer. The installation booklet is a little short but the product of value for money is interesting. . Very disappointed in the quality, manufacture bad: there is a space between the underside of the armrest and the sides, which is unsightly especially since it is not indentique each side. It is not comfortable, it takes a lot of strength to call into sitting position. Very very disappointed for a German-made !! I do not recommend at all.