Fairly well constructed.  We typically have a breeze here and this umbrella is a pretty big wind catcher - I've used it in 20 MPH gusts so far and it did well.  Hoping it continues to hold together.

Great shade and the umbrella fabric is nice and heavy duty.  Was pretty easy to assemble.

Update after a short while of ownership - the small ropes provided to operate the zipper on the cover disintegrated within a few weeks in the sun.  Just this week, the cover ripped at the top where the solar panel for charging the battery for the lights is.  Not impressed with how well this cover is dealing with the sun at all!