I really wanted this Ikea loudspeaker to sound good, but it did not. It would have been a nice tv-loudspeaker. In my view, the Ikea Eneby 20 ( which I own ) and Eneby 30 sounds a lot better.
However, I dont want to be critical against those who like the sound , sound quality is ofcourse a very personal thing.
And this speaker don´t cost much.
My comparison and reference are my Genelecs with digital input.
I agree that the Eneby speaker is excellent. Regarding the IKEA/Sonos, I have only heard the Symfonisk book-shelf speaker and while it can produce som decent sound, it cannot compare with the Eneby30.
Overall SQ is however a different question than the technical aspects of conventional speakers vs. flat on-wall speaker with large baffles.