Overall this is a well engineered product. Directions are ok for being solely pictorial. Only mistake I made was not realizing you are suppose to tap bolt receptacles in with a hammer first. That’s the very first step and was not indicated in the directions at all. Other than that it’s pretty straightforward. Big pros on design is that there is some wiggle room slots on all parts that allow for easy minor adjustments when putting on the roofing and final channel covers. This allows for it to not be perfectly square and still easy to finish. We were able to complete it with two people in about 8 hours.