I bought 40 of these chairs for the party room at my Family Entertainment Center.  They are everything that I had hoped for: colorful, sturdy, easily stacked and taken apart, economical, and I didn't have to pay the shipping!
I plan to buy more it needed.  I do wish that they had them in yellow.  I saw a photo of the yellow, and they would look nice with the blue, red, orange, and green at my business.