I'm in love with this pergola! It's super study! We cut 3x3 post and put inside the legs for added security.. the louvers function easily.. And totally blocked out the sun. Which provides a better deck experience! The irrigation system keeps water off the top and comes through the legs and goes onto the ground. And with the louvers closed it keeps the rain out! I can sit on my deck even in the rain now! It has curtains and a mosquito net. They zip together not just tie so you can have a full closure of the pergola if you desire. The zippers seem very heavy duty and not flimsy. The pergola has a very expensive look! It came with some missing parts which the seller took care of immediately! The instructions were not the best but definitely not the worse. It did take about 8 hours to put together with two people. I'm so pleased with it! I see this pergola holding up for a very long time!!!!