There can be music playing and I can shout across the room to my Echo to add something to a shopping list and it gets it right most of the time. I use an old iPhone to play music on my stereo system. I'm lucky if I can get "Hey Siri, STOP" to work when music is playing even if I walk right up to it.

The Echo is still pretty "dumb" as soon as you deviate from fairly precise commands that it understands but the voice recognition itself is far and away the best I've seen.

The platform aspect is interesting even if I find it mostly still pretty gimicky. But it's got potential.