This is a great buy for the price.  Screwed down to a wood deck it is very sturdy in the wind.  The metal is very thin but adequate and may to be maintained by cleaning and spray painting or sealing the joints where rust might occur after being exposed to moisture over time.  The canopy, in my experience, lasts at least three six month periods, spring through fall, here in the north east before it shows any sign of deterioration or tearing.  The canopy will not outlast the frame.  For convenience, sewn in to the material is a phone number where you can order a replacement.