Some of the reviews have been mixed. The Screen Savers tried a blind sound test of several devices, and there wasn't a clear winner, everyone had different favorites (which is probably not what you'd expect from Apple's marketing, I personally had expected an obvious improvement over competitors). Jumping straight to the results in the video:
The Screen Savers aren't the only one to have done a blind sound test where the HomePod lost to the Google Home Max. Yahoo's David Pogue[1] and the Washington Post[2] also did blind sound tests.
You can also just buy single monitor, and it will sounds good. However, you will loose the difference between the right and left audio channels especially if you mix the two channels into one.
I am saying for the money you could get a pair of monitors that give you both left and right audio channels and sounds good.
If your playing music, but not really setting up a listening environment why buy a 350 dollar speaker. Let alone one that downmixes stero to mono channel.
My understanding going in, and experience with the studio monitors I have bought, was that they are built specifically for listening at optimal angles and distance only.
I have seen how sonos and other wireless products are used - to fill a room with sound. That's it - they aren't looking for stereo separation, they want a nice sounding... pa system.
https://www.youtube.com/watch?v=QqGvmf44FEk&t=7m04s