Sonos Ace are premium headphones at a premium price. The question was never whether they sound good at that money. It was whether the difference is one a normal person in a loud house will actually notice.
The Ace are Sonos's over-ear headphones, sitting at the top end of the market on price. Sonos have a long history in home audio and the Ace are their move into a category already owned by two or three very established names.
A different question to most reviews
I am not listening in a quiet room to evaluate a soundstage. I am listening while editing, while a baby is asleep down the hall, and while three other kids do whatever three kids do on a Saturday. That reorders what matters completely.
At this price the competition is fierce and the honest answer for a lot of people is that the tier below is enough. That is worth saying plainly on a page about a product I was paid to cover.