Even when properly installed, product did not stand up to 49k ( 30m.p.h.) winds. Problem is with the metal cable/u-clamp fasteners used to mount the legs to a screw-type ground anchor. The grade 8.8 (ISO 898/1) bolts are of inferior quality for this kind of application - even when torqued to specification. This AutoShelter is located in an area reasonably sheltered from wind but the anchor system still failed at the cost of a paint job to a 2009 Toyota Matrix. I am re-installing the unit with a throughbolt-type system to overcome this serious design flaw and would suggest others do the same. read full review »