ShadeTree Awnings

Anybody here ever own this http://www.shadetreecanopies.com/residential/ brand of awning ? This seems to be exactly what I was looking for, but have some concerns about how well they survive.
I like the fact that it is supported on both ends, rather than cantilevered like the typical scissor style retractable awning. I don't plan on moving them very often. Likely I will extend them in June, and retract or remove them in September. If a big storm is expected, I would likely retract them, but I am looking for something that should survive the storm even if I did leave it up.