So far so good! Have used it only twice so far. The first time it was up/open for most of the day with no problem.  Casts a large area of shade and looks very nice!  The second time it was a bit windy and the umbrella moved quite a bit so I didn't feel comfortable having it open.  I closed it within 5-10 minutes of opening.  I have since realized that there isn't an additional bar from the vertical pole to the center of the open umbrella (as you see on other cantilever umbrellas) which helps keep it stable while open.  For the price, you can't beat it - I will just be cautious on windy days!