Always wanted a covered porch, when the cost of adding a roof to our existing structure was well over 5k, we choose to add a patio gazebo. The pad we have measured 13x17 so this one fit perfectly. Like you, I wanted to make sure this was something I could tackle myself so I hit youtube and watched a few assembly videos. Most made the roof assembly seem like you needed some sort of mechanical degree to assemble.... I completely disagree. Commen sense stuff like  dont tighten anything up until the end , make sure its square ... you know simple stuff.  So it took me and 1 other person about 8 hours to assemble. Only tools required was a 6ft ladder as all necessary tools and hardware are included. I didnt  even have to adjust any of the holes as everything lined up as it should. My only complaint was shipping, showed up with a large dent in one of the legs and top beams, but they are hidden in my case, so no big deal. Ready to enjoy our new outdoor room.