The assembled product is attractive and works as expected. We didn't think the height would be correct for our application, but that concern turned out to be incorrect.  There is one problem with the assembly instructions however: no discussion of the difficulty of assembling the seat back to the seat proper.  As they are both circular and the fastening components are arranged on their circles AND both are not movable, they can be difficult to align for assembly. My engineering background told me that the bolt holes and nuts had to be aligned before trying to engage one with the other, and to only way to do that was to clamp the two together in their final alignment.  That worked; trying to hold them by hand would not have.  The secret: two C-clamps at the center of the circular arc pulling the seat frame and the base of the seat back into alignment. You can then engage the threads of the bolts with the threads of the nuts.