Note - I'm more concerned with sound quality than aesthetics, and fortunately, so is my wife!
We have old Sonos kit (all Sonos S1 - Sonos Connect devices) as a source for music in 4 rooms. The one that gets used the most is in the games room which gets used daily whilst playing pinball and darts. Despite the pins having good sound, I'll often turn the pin volume down and crank up the hifi with New Order, Def Leppard, Shamen, or whatever.
Having listened to Sonos
speakers (Play 1, Play 5 etc.. ) in various places, I'd personally rate them as worse than rubbish from a sound quality perspective. As an example, once my wife and I had a listen to a Play 5 in John Lewis, and her first reaction was, "that sounds cr*p".
Having loved what I'd term as good quality sound since I first heard a decent system in my teens (a friend's Mission Cyrus amp and speakers), I'd personally always go for a separate quality amp and speakers. What Sonos IS good at is the ease of use in accesing music - both streaming services such as Spotify, and playing music I've ripped to FLAC files from 2000 or so CDs I've bought, now stored on a networked NAS. In a couple of rooms, I don't even use the Sonos line out connectors, instead taking the digital signal (so bypassing the Sonos DAC section of the Connect), and feed that to a separate (better) DAC, then on to the amp.
Yes, there is the issue of wiring speaker cables etc.. but it's totally worth it for the improved sound which is possible.
Also decent stuff tends to last - the system in my games room (Sugden pre and 2 x monoblock power amps into Rogers LS6 speakers), I bought in 1988, and it still sounds superb.
You can get some pretty good bargains as far as amplifiers and speakers buying second hand kit from eBay, HiFi forum classifieds etc.. Also Sonos Connects are readily available from eBay for well under £100.
Even for the kitchen we fairly recently (about 4 years ago) put in a Sonos Connect with a couple of B&W LM1 wall mounted speakers (£43 from eBay), Marantz amp, and REL T3 sub (£100 locally from Gumtree).
Obviously this is just my take on it and different people have different priorities and opinions...