g007,
You really have no clue what you are talking about. SONOS is a solid product, more so then any of the other wifi audio systems out there. As others have mentioned, customer reviews = crap! Customer are mostly stupid and will give a negative review because they didn't like the color of something.
By the way, 200ish bad reviews - do you have any idea how many millions of those players SONOS have sold? So even by customer reviews, that equals probably one of the best reviewed systems of all time.

Not sure what that list of equipment you gave was suppose to mean. As there was some nice stuff and complete garbage both listed.