Although the seat cushion does extend past as other reviewers have noted, it's not bothersome.  The chairs roll smoothly on my tiled kitchen floor and, wow, are they comfortable!  I would give 5 stars, but 2 exceptions require the drop:  extended cushions do cause the back of the cushion to flip up a bit when getting up out of the chair and two of the 4 ordered have a minor defects (seam of cushion on one is in the front instead of the back and the other came slightly damaged -marred leather on one arm).