I am so disappointed!  I bought this for a wedding reception in my backyard, we put this together according to the directions and after putting the canvas on and attaching the end posts (per directions) the middle support pole broke!  With the reception being less than 12 hours from now, we pulled out the duct tape and cobbled it together so hopefully it will stay together during the reception.  Needless to say I won't be able to use this again since once we take this down the support pole will not be able to be used.