I bought these when they were offered last time. They are decent, but pretty cheaply made. The fabric is thin and see thru, and the crank is questionable. But for $40 I’ll be happy to get two seasons out of them and will feel like they were worth it if I do.
This was $34.99 May 2015. The fabric is thin. I’ve had it open 24/7 and it holds up well even on very windy days.
Seriously, what do you consider to be a “very windy day”?