The Echo with the Smart Things Hub, controlling Z-Wave is awesome. I also have a couple of lamps being controlled by the Insteon Hub with Insteon Lamp Dimmers and it works well, but I'm more excited about the Smart Things Hub along with it's future possibilities.
I also use it to control my Philips Hue Hub and it works well, especially if you want to get into the color changing bulbs, but otherwise it's not as expansive as the Smart Things Hub.
I think you might call me a Hubaholic.