You can certainly make Sonos sound better by passing the Connect to an outboard DAC....or even by using it with an external amplifier instead of the Connect:Amp. Or both for the win!

Bluesound has a long way to go. They are being very cautious and slow with their release, while Sonos roars ahead on their unrelenting mission to penetrate every household with an internet connection.

Honestly, I think Bluesound is an audiophile geek version of Sonos that will never really gain any traction beyond the HiFi geek market. We'll see if I'm wrong.