This carport understands its job! It's been up for about a month now and has weathered a number days with notable sustained winds (> 20mph) as well as a rainy day that dropped 2" over 12 hours with a couple of heavy rain periods. Everything within was dry as a bone outside of some seepage from underneath. Securing this to the ground is imperative; besides keep it from flying away, securing it will also help with stability. Rather than using the included hardware (for securing to earth, like on a lawn), I bolted the legs to 1x6 boards (4 boards, 7.5' in length), with two legs per board. I then secured the boards to my driveway using 8 16" rebar J hooks that I drove through the asphalt.
The instructions were okay. I got there but had to undo/redo a couple steps because I missed something that wasn't clear. I was able to assemble this on my own in under 4 hours (not including the boards) but a second person would absolutely make the process faster and easier.
Overall, I am impressed and would recommend!