I've used two different sizes but only as garages. They do work well and last quit a while, especially for the price. I've had a 13x24 for about 5 years and it's held up well. It's protected from the wind as it's in the middle of the trees. The only issues I've had with it was tops of trees broke off and landed on it. Poked a couple holes in it but they are easy to patch with special tape you can get from the company.
If you're looking for something to put up and down frequently this isn't a good option. It takes several hours to assemble. On the other hand, if you plan on leaving it up all year I think it would work well. I just saw an add from Menards that had a 10' high x 13' wide x 20' long for $397.