The umbrella worked as expected but after two weeks of use the top pen/screw that keeps the umbrella in place broke. While there is a pen replacement in the pack that came with delivery, likely due to repeated malfunction, the umbrella is simply not substantial enough for daily use. Also, the arm does not rotate so it cannot be easily positioned. I would recommend purchasing a more substantial umbrella even at a higher cost, as this umbrella will not make it through the summer.