I like that it's aluminum, and it is reasonably heavy but not as much as my now rusty steel base.  It us also shorter than most, but it works fine.  One problem is that the instructions are incorrect because they show the bottom plate with screws into threaded holes like all other connections but instead they require internal nuts which are a bit hard to reach once the rest of the unit is assembled as instructed.  However, I intend to buy two more soon.