I had the same setup experience with my Hue Bulbs (I have three) and Echo. Not to look a gift horse in the mouth, but I have 2 issues with using Echo (aka, Alexa) to control my Hue lighting:
When Echo turns the bulb on via voice command, neither Hue nor ST detects the state change, and therefore neither realizes the bulb was lit. Same with turning it off….if I turn the bulb on with ST or Hue, then turn it off with Alexa, ST/Hue still thinks it’s on. Kind of a big deal for people who rely on the apps to let them know if they left a light on at home; they could have and not even realize it. I lump this in with the other problem I have with Hue: when I had a power outage at my house, all my Hue lamps came on when power was restored, and ST/Hue hubs didn’t reflect the state change.
Echo inherently has proximity limitations. You basically have to be in the same room with it for full interaction (talking to and listening). In the context of voice controlled lights, this is mitigated somewhat by the fact that the Echo remote is also a microphone. So I can be in a different room than Echo, speak into the microphone, and issue the verbal command to turn lights on/off. But I have to have the remote with me, and I only have one. I’m not even sure you can connect multiple remotes to one Echo so you can at least keep one on different floors of the house, if not different rooms. Hmmm…I wonder if an intercom system would work?
Even with those limitations, that new feature is still pretty cool. I have to change the names of my bulbs, because it sounds pretty strange to say, “Echo, turn on ‘Hue MBR Lamp 1’”.
Would love to see Echo control other things besides lights eventually.