Given the price, I was a little scared. But finally the chair is comfortable, relatively firm but pleasant. It looks solid, the assembly instructions are clear ... but not too much. In fact the installation is extremely simple: 4 screws to mount and fit everything else. EXCEPT a small detail not very visible on record: we must lift the black plastic protective cap tire verrin! And if we do not, the joystick will not work (logic). BUT if you forget the protective cap and suit chair, the cap gets stuck under the chair is it is very hassle to remove then to correct his mistake: unscrew the back seat and use a long screwdriver " type "on the cap in order to unlock the support tube. A bit of a chore, but it's mas fault, it was written on the note ... in toddler. This deserves to be more visible on the leaflet :-)