Bought two of these umbrellas for the backyard. We were a bit concern if we will be able to install them ourselves since they are heavy and looked complicated. Well, we were wrong. Besides the fact that they are heavy(need 2 ppl) , assembling was easy. We were done in 20 mins per each umbrella - and 5 mins out of that was to fill up the water to the base. Once it was assembled, it was very easy to operate. Note: 15 mins reading instruction is recommended before assembling. Also, make sure to pick the right and final spot before filling up the water to the base. It was not easy to move it around afterward,