Yes, Simmer

Some are VERY good.
First the “stall warning” thing :
ANR headsets only screen out a range of low-frequency noise that mostly corresponds to the engine drone. High frequencies remain; which means that you can still hear the stall warning, approach markers and any fancy gizmos you may have like GPS warnings or fuel computers.
I tested the BOSE X in my office one day, when there was a cement mixer under the window – the mixer disappeared completely but I could still hear my PC ding and buzz as well as the telephone ringing. Damn clever!
Secondly the clamping thing :
since an ANR headset does not rely on a physical seal to keep out the cockpit noise, it does not clamp onto your head as tightly as a passive noise reduction headset – only enough to keep it in position. This means that it doesn’t press onto your sunglasses and give you a headache!

I borrowed a BOSE X for a ferry flight last summer – from Texas to Essex. Flying about 10 hours a day for several days, with the added discomfort of a cannula stuck up my nose, I felt far fresher in the evenings than I do with my old Telexes.

The only thing stopping me from writing the cheque is my extreme meanness – but with spring in the air, I think I will weaken pretty soon.