This umbrella looks really nice, however it is sort of complicated to assemble. Also, Part J has a flaw that the manufacturer needs to fix - the joint that holds the cantilevered arm is plastic and over time, warpsbends from the weight of the arm. The warping allows the cantilevered arm to drift, so it’s hard to position the umbrella over a specific position. The manufacturer did send us a replacement part, but the problem is still there. I don’t expect this umbrella to last more than a season with this issue and I doubt the manufacturer will keep sending a replacement every time we have this issue.