Same for me
I initially entered the Sonos world when the new hand controller came out and Richer Sounds panicked, selling the ZP100/ZP120/Old controller set at knock down prices (well 25% off). Never regretted it (was also looking at a squeezebox system at the time). Since then added a S5 when it came out and now a Play 3 for moving around where needed (Richer Sounds did a 20% off weekend a few weeks back).
As to those who those who rate the Logitech system higher - it's a nice system (or at least was - have Logitech dropped most of it now), cheaper, but limited by the range of your wireless router, not the nearest device in the same network, and does not do true zone linking. Also you're not reliant on dedicated software on a PC or flakey versions on a NAS to access your music, Sonos will work with CIFS, SMB, and DNLA.
To those who think the Play3 is a mono device - it's not, but if you have two then you can configure them so they act as a left or right speaker in a pair.
I do agree Sonos can be expensive, but there can also be some good deals out there. Also if you have an android or iOS device then you do not need an expensive Sonos controller or a PC/MAC to run the system.