I have waited a couple of years to get this product and I am thrilled with it. I had 2 contractors install it and it did take approximately 10+ hours, but they commented that the instructions were superb and that the photos were very exact. There were only 2 little issues that I think Kozyard could fix. One - the metal brackets (z1 - z4) need to have more of a rubber feel as they kept falling off the roof panels during install.  Two - you should include rubber stoppers with the packaging as there were a few spots that we had to use silicone to prevent any water getting through. Once that was patched up everything has been fine as we have had rain and wind for several days and the gazebo and it's contents look great.  I did have one other problem as the netting for mosquitos has a zipper flaw. I am hoping to get a free replacement for this. Now, I'm just hoping that the structure will survive a Canadian winter :)