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QuietComfort 35 II vs Ace

Reddit's answer is the Bose QuietComfort 35 II. Buy it if you prioritize all-day comfort and noise cancellation and can tolerate a real failure risk. The Ace is a Stay Away — don’t buy it.

Bose QuietComfort 35 II
Bose · Audio

QuietComfort 35 II

Buy If$350
57% of 1,293 owners recommend
~1 in 3 failure rate — ~1 in 3 long-term reports mention a failure, with the power switch and bluetooth as the most cited components. Onset typically falls between 10 and 73 months — well past purchase but often within an extended-warranty window. Of tracked warranty outcomes, 88 were resolved and 62 were not, so resolution is more likely than not but far from guaranteed. Against a category baseline of 27% serious failure, the QC35 sits about typical for wireless headphones.

Buy it if you prioritize all-day comfort and noise cancellation and can tolerate a real failure risk.

+ Repeatedly mentioned as a reason to buy — 156 owners cite all-day wearability as the standout trait.

− A vocal minority of 60 reports find the sound tuning overly bass-heavy or lacking detail.

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Sonos · Audio

Ace

Stay Away—
44% of 662 owners recommend
No recurring failure pattern found across 62 threads.

Don’t buy it

+ Repeatedly mentioned as a standout — long listening sessions without fatigue come up constantly in owner reports.

− A vocal minority finds the sound quality underwhelming or inconsistent relative to the asking price.

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Questions people keep asking

Which is better, the QuietComfort 35 II or the Ace?

Reddit's answer is the Bose QuietComfort 35 II. Buy it if you prioritize all-day comfort and noise cancellation and can tolerate a real failure risk. The Ace is a Stay Away — don’t buy it.

Is the Bose QuietComfort 35 II worth it?

Reddit's verdict is Buy If. Buy it if you prioritize all-day comfort and noise cancellation and can tolerate a real failure risk. Strong ANC comfort with a real reliability shadow — ~1 in 3 long-term reports mention a failure, but owners who love it still love it years later.

Is the Sonos Ace worth it?

Reddit's verdict is Stay Away. Don’t buy it. Comfortable and good-sounding, but a polarizing price tag keeps the recommend rate below the category average.