Reddit rates both Stay Away. The split is what you want: the QuietComfort Ultra — don’t buy it — get the Sony instead. The WH-1000XM5 — don’t buy it — get the Sony WH-1000XM4 instead.

Don’t buy it — get the Sony instead
+ Repeatedly mentioned as best-in-class for all-day wearability across hundreds of owner reports.
− A vocal minority finds the tuning too soft or colored, especially versus Sony's profile.
Full verdict →
Don’t buy it — get the Sony WH-1000XM4 instead
+ Repeatedly mentioned as the benchmark other wireless headphones get compared against.
− A recurring theme: hinge failures dominate long-term reports, with 132 hinge-specific counts logged.
Full verdict →Reddit rates both Stay Away. The split is what you want: the QuietComfort Ultra — don’t buy it — get the Sony instead. The WH-1000XM5 — don’t buy it — get the Sony WH-1000XM4 instead.
Reddit's verdict is Stay Away. Don’t buy it — get the Sony instead. Sound and comfort hold up long-term, but ~1 in 3 long-term reports describe a failure — buy with eyes open.
Reddit's verdict is Stay Away. Don’t buy it — get the Sony WH-1000XM4 instead. Exceptional sound with a structural flaw you must factor in: ~1 in 3 long-term reports describe a hinge failure.