Sonos is the Apple of home audio. .
Sonos is even better than apple:
1) They give you the chance to use and connect nearly whatever you like to use or connect in their system: NO walled garden. They just add their options of own speakers, but they don´t oblige you to use them in an "closed Eco-system".
2) Unless the last years with apple, The SONOS Software works flawlessly and smooth and they continuously work on perfection and further GOOD and intelligent features, not just on useless gimmicks like apple does more and more.
3) Their customer service is impressive: had once a problem with my System (not due to a problem with Sonos itself, but with my local computer configuration) and the German customer service helped me out the same day by perfect advices via email.
4) In contrast to apple, SONOS hardware is absolutely reliable. NEVER had any problem over all the years.
The only exception was their own remote-controlls, but in the era of smartphones nobody uses them no more. And they discontinued the production of their remote controls which had after 2 years of use a problem with the touch screen. (Both 2 of them failed after 2 years of -intense - use).
5) I use professional Monitors and semipro/pro equipment. And I am impressed - for a consumer product, the Sonos system has good balanced level of reliability and reproduction quality.
Some words about TruePlay and Room acoustics and good speakers:
The new "Trueplay" feature is not bad. BUT for some reasons, especially acoustics and psychoacoustic perception (Tags: Directivity and early reflections) the best way for better listening is still optimizing position of speakers and position of Listener and intelligent work on room acoustics.
With "Trueplay" you don´t change room acoustics at all, you just"equalize" frequency already twisted by bad room acoustics.
Proper listening conditions are nothing but about relation between direct and reflected sound. It is about both: frequency response and also on delayed reflected signal.
The more the direct part the better the sound, because there are less layer of the same signal you receive after being reflected in the room. Reflected part of signal comes with delay and is smearing by some over-added delayed layers of the same sound. Dependent on room acoustics reflected sound comes to your ears also with extremely twisted frequency response. This causes colored sound. The delay of reflected signal diminishes localisation of the stereo/ Multichannel informations.
With Trueplay you don't change anything about that. You just work a little bit on the symptoms but not the causes for bad listening conditions. Optimizing sound for more neutrality means
1) using speakers with as much ---> "directivity" as possible (equal over all frequencies to eliminate colored sound). This will prevent too much ---> "early reflections". This means speaker has flat frequencies not only "on axis" but also "off axis" - one of the most if not THE most important difference between good and bad speakers.
2) eliminate early reflections of all frequencies as much as possible. This will result in a much better relation of direct sound and reflected sound. The aim should be to have >50% direct signal and <50% reflected signal.
Trueplay is not at all useless, it makes sound a little bit better, but not more than that.
But this "a little bit better" sound should motivate you to work also on room acoustics which - if well done - will result in much more better sound than only with Trueplay. And a listening experience which is overwhelming.
The good news: Working on room acoustics is not that expensive.