I have owned my system for about 7 years and with only a few exceptions, it has worked and sounded great.  
 

The newest update has and continues to cause me issues.  It is slow to react to simple actions such as pause, play, change rooms, load new playlists to be played, not working on concert with the computer app to name just a few.  Bottom line… it does not work well and there is no excuse for Sonos to have released this update without thorough testing (which I would only assume they thought they did).  

I am not extremely technical and quite old school.  I have not read through the myriad of comments that I can only assume are out there on this same topic but am hoping that Sonos can get their act together and make it as good as it was before.

Also, relating to the email from the CEO, my system overall is great (except as outlined above) and I expect that is will last a very long time.  Kind of like my Advent speakers and Macintosh amp which I bought around 1968 and, if maintained) will never be made obsolete by the manufacturer and will continue to sound incredible!