Was very surprised to see how well this is made, for $100 it is a deal! Had to reinforce it (although it does say to on the material itself) with cable straps, extra ropes and anchors. Only downfall is there should be more straps securing the material to the frame itself. I believe there are only straps on corners, overhead in 2 spots, and maybe on the top ends. Love how the windows seal completely with Velcro. I don't even tie the windows open I just fold up the window and secure the Velcro (top of Velcro with bottom of window). Makes it quicker if I need to close them in a hurry. Probably will buy another before summer is over.