Bought this 12x26 Super Max Canopy about 7 months ago. Nice solid frame, easy to assemble. Has done it's job up to now, however the cover is fraying/tearing apart at the corners, had to take it down. Since the corners get much of the stress, should be better protected.  Maybe if there was some relief of air at the top that would help relieve the stress. I will be contacting ShelterLogic to see how they handle this. Up to now would have given a great review, hope the company stands up for it's product.