Portable garages?

in my opinion the rounded roof is better. i found that the smaller ones are better then the larger one also. the larger ones seem to catch too much wind and it tears up the zippers. i have one that has 3 cars in it. the main part of the tent is fine but the front and back are torn up. its about 4 years old. now i have a smaller one that like 12x12 and that has really held up great. if i did it all over again i would buy three separate 20x12 tents for the cars.

this is the brand i have.. built very nicely. http://www.shelterlogic.com/garages/