Has anyone upgraded from Connect to Port and noticed any appreciable improvement in sound quality (with same source material and speakers, of course)?
How about any audible difference between these Sonos products and the Bluesound node 2.0i, preferably using same source? (I would expect Bluesound with Hi-Res streaming to sound better than Sonos)

have a lot more Sonos speakers now. Have two connects. I recently listened to beryllium speakers from Focal on a Mercedes Benz. I have to now say having listened to CD Quality sound on that setup that it pretty much captures the live musical performance almost like sitting in the studio and hearing the instrument sound fully captured by the mic.