I have friends of mine that have purchased the exact same model and it worked great for years.  I just purchased mine and set it up all by myself.  I had to adjust the installation process a bit to accomplish the task, but it worked out great.  

I have read some of the reviews, and one friend had an issue, but found out they did not anchor it down and when a strong wind came along, the carport flipped.  You have to follow the directions if you want results. 

The only adjustment I would make is clearer markings on all piping as quite a few were faded (I just compared to others) and that screws were in separate labeled bags.

All-in-all I am pleased