I thought i would share my experience with VoxCommando and the echo as its the best thing i have setup.
I use the Echo as its voice recognition is the best i have ever seen, i use it with the amazon-echo-ha-bridge
https://github.com/armzilla/amazon-echo-ha-bridge This project emulates a HUE bridge and then passes an HTML request on to turn devices on or off.
I use this gateway to call Voxcommando HTTP tasks so i can say "Alexa turn on the rumpas room TV" and it calls one HTML request to VoxCommand which then, Turns on my projector, turns on my pioneer amp, selects the correct source etc turns on my wemo controlled sub etc.
This allows awesome automation as the echo is simply the speech engine and its the best thing i have seen to do this. Also this allows me once VoxCommando gets to the point where its speech recognition is as good and im sure one day it will get there i wont have to redevelop everything as its only the font end that will change