Easy assembly.  Attrractive.  Cast aluminum provides enough weight to prevent getting blown around or tipping over if bumped.  Actual finish shows more light and dark metallic variations, so the set could coordinate with dark antiqued bronze to even bright brass fixtures.  Seats are rather small -- hard to find seat cushions to fit, if you want to avoid burning your buns.  Size and comfort of chairs are OK for  designed use, but definitely not ones you could relax and doze in for hours, like an Adirondack or rocker.  This is, of course, the main trade-off for a compact footprint.