This Angeles Home steel garden arbor is fairly easy to assemble, two people would make it easier, but I put it together by myself. The instructions state that the arbor is intended as a temporary structure, but their are bolt holes in the feet so that it could be installed permanently, which is what I did. With the arbor anchored to a concrete pad, it is fairly sturdy. The reason for the 4 stars is twofold, first the walls of the steel tubing forming the arbor could be thicker. Second, the arch at the top of arbor is not a perfect half circle. If you stand there looking at the arbor, you will notice that it is out of round. Hopefully as vines grow on the arbor it won't be noticeble.