Chairs look great, very modern.  there is no set screw at the bottom like another reviewer mentioned.  when we called customer support to get clarification we were told "yes there is a support screw holding the bottom together".  But no, there is not.  Hopefully the chairs won't fall apart when people pick them up to move them out and back in.  so far they are staying together...so fingers crossed it stays that way.  they are fairly comfortable for average person and kid, not for older folks that have bad backs.