Sonos play 5 and an echo dot for me. The voice command feature is soooo useful when cooking/washing up etc.
When we knocked our kitchen about, I put speaker cable in the roof and ran it back to under the stairs where the rest of the av gear is, but the sonos and dot work so well I didn't think it was worth the hassle of installing ceiling speakers.
I definitely wouldn't recommend a dot by itself. Sound quality isn't great at the best of times, but if you've got the tap/microwave/kettle/extractor fan on as well, it just doesn't have the guts.