Noise cancellation performance is the area owners disagree on most: some say it beats AirPods Pro 3 on higher-pitched sounds and handles passive isolation well, while others report the ANC got worse after a firmware update, developed a fault, and required a warranty repair, with no way to roll the update back. Build quality complaints follow a similar pattern, ear cups separating, squeaking, and units losing connection over time.
Owners who ran into these issues describe going through Bose's warranty and support process, though customer support itself draws a clear complaint from several accounts. The long-term picture is thinner on the positive build side than on sound and comfort, so it's worth saying plainly: most of what's known about durability here comes from owners who had a problem, not from a larger base confirming years of trouble-free use.