Change from 2 to 5 stars.  After a not-so-great impression, I sent a message to the seller who promptly asked if I wanted a refund or replacement.  Needing an umbrella I asked for a replacement.  It arrived quickly and at no cost.  One of my original issues was that the button to open requires far too much effort, so does closing it.  This is still true, but I've come to realize the product (including this part) is well made.

My first time using it was during a rainstorm with 50 mph gusts.  I walked 3 blocks from my work to a parking garage.  The umbrella inverted twice.  After that it did not open automatically (popped up but required manual pushing to lock in place.  I am grateful for the free replacement.