Very nice chairs. The seats are plump and firm, and the wood by your knee bend in the front does not crease into your knees as it did on my former chairs. There seems to be some sort of spring mechanism in the cushion.  The chair feels kind of light to lift and move, but sturdy to sit on.  My son & I put them together - took about 15 min per chair after we got the first one figured out. Almost every chair had wobbly legs - the instruction book has a quick fix for that.  Make Sure you read the instruction book.