Even though the aluminium is S$20 more expensive, I love every aspect of it. The build is solid and weighs slightly heavier than the original (40g vs 12g). Because of this, when the Milo is placed on the table, it more stable when supporting a slightly heavier mobile device.
It is also available in two colors, black and white. However for the aluminium, only the plastic portion is colored and the stand itself is in aluminium. I wish the black comes with black anodised aluminium and that will look awesome.