Overall I am very happy with my purchase.  The center pieces that provide structure to the mesh bow out a little, which as a Type A individual drives me nuts so I keep it folded as pictured.  It would bother me a lot more if I had intended to keep the center pieces straight and only fold on the ends.  Not enough to make me regret my purchase and it may not be the case with other screens, but I thought it was a "defect" worth mentioning.