Value for the cost is not worth it.  If filled at weight capacity the item is essentially immoveable.  Being immoveable, the size is intrusive for the setting we would be using it.  I'm also concerned if it would actually hold our giant 12' x 12' umbrella in the wind, we experience microburst wind conditions that are difficult to predict and do not want to find out the hard way at the cost of the umbrella.  We have opted to install the Purple Leaf, inground steel base that you set in concrete.  We were not going to be able to move it anyway and if we want to we can figure out the sun pattern and install an additional inground base.