Very well constructed and easy to install. Be aware that the materials needed to install this (chain, coated cable, turnbuckles, connectors, etc.) will cost  you just about as much as the shade sail. I installed mine the day it came in and it rained that night. When I looked at it in the morning it was drooping in the middle. Be aware that this thing lets water get through but it still gets wet and retains some water. By the time the sun came out it and it dried was back to normal again so it wasn't really an issue. I went back around and tightened all the turnbuckles so that will help during future storms. I decided to add a  a third cable and tent mine since I live in the middle of the forrest in East Texas and the pine needles from these 70ft tall bull pines would accumulate in the middle quickly ( see pictures). So happy I got this because without it the sun makes it unbearable to sit outside for long in the summer. Wish it could keep the mosquitos away as well ;)