pretty simple mounting but better be at two to put the file and count a good twenty minute for monter.beau design once completed and seems quite solide..la height of the piston rises high enough that is not negligible for some office. not too much clearance between piston and seat not sure it looks like that will switch on the side lol! .the record doing well on the back (the folder is fixed and non-tilting) .. the hard plastic wheels and rolls perfectly well once sat on it (test carpet and tiles) .. folding armrest which is a plus for storage under the default bureau..seule my taste and that no tissue in the center of the seat that is a small detail in ... Regarding transport packaging I find it very lightweight and has a screw pocket was torn down and is in the carton and luckily everything était..a by ca I regret my purchase ... ps: one week to the delivery because Article from Germany ...