I find all of these to be excellent. Even when sitting at my desk about a metre to the left of the l/hand speaker, I can distinctly hear vocalists as being centre stage. When sitting equidistant between the speakers the imaging is extraordinary.
I have a high-end Arcam amp and B&W floor-standers (which the HomePod are now sitting on top of!

) , which cost about 10 times as much as the HomePods, and I can honestly say that the HomePods/Apple Music combo, whilst clearly not as great as the dedicated system, is really good enough to be my "daily driver".
I may, in the end, decide to sell the high-end kit since I'm getting tired of all the cables and, importantly, speaker size in a relatively modest listening space. Besides anything else, the frequency response of my ears will clearly decrease with my increasing middle age