I use Bose QuietComfort 20's and even though they are awesome, they still not good enough. Active noise cancellation is great for airplane noise (predictable, repetitive), but not for voices.
And even for airplanes, it's not that good. All noise canceling headphones I've looked at or owned have a sampling frequency of 21KHz, which is a bit low, and results in high-frequency (if low amplitude) noise that I can hear, and it's annoying or even painful.
I don't quite understand why there are no 44KHz noise-canceling headphones on the market...
(eg. https://asoftmurmur.com/)