QuietComfort Ultra Headphones (2nd Gen)

Just received the QC Ultra Headphones (2nd Gen) and the left cup's noise cancelling is weaker than the right, the right cup buzzes with ANC on, and immersive audio lags on one side; considering a return.

Replaced a failed B&W PX7 S2e with the QC Ultra Headphones (2nd Gen) and finds them more comfortable and better sounding.

Bought the QC Ultra 2 and the Momentum 5 to compare and kept the Bose. Finds the highs and mids crisp and detailed with a smooth, punchy low end, better soundstage and separation, slightly better noise cancelling and by far the best comfort; battery life is about half the Momentum's. Got an open-box pair for $310 and isn't sure it's worth $450.

“The Bose are so much lighter and don't clamp nearly as hard. They are the most comfortable headphones I've ever worn by a mile, it's like wearing a pillow on your head.”