I love the new Sonos One. Despite an angry tweet storm from me directed at Sonos and Amazon for what I feel was a bumpy rollout, since then there have been a few software updates that have made Alexa + Sonos one of the best combinations in audio and voice assistant. The Sonos One is a fantastic device and for the price I highly recommend. I love Sonos products and this is great. Do not wait for Apple's HomePod and the Amazon Echo speakers are quite possibly the worst sounding audio devices I have used for music.
As I sit here and write this now I am being showered in glorious surround audio from a Sonos One, Sonos Soundbar, two Sonos Play 5s + Subwoofer and ceiling speakers powered by a Sonos amp.