We have company provided Sennheiser HME 45 headsets and they break very easily. I used up around 1-2 per year. especially the microphone boom is very prone to either break off or completely disintegrate, but also the electrical connections to the earphones, the battery box for the ANR was a real problem as well.
Bought myself the Telex 850ANR and although it looks very delicate i hadn't any problem with it. When not in use i allways carry it in its (slim) case so i use the swivel mechanism on the earcups quite a bit.
All in all i prefer the telex quite a bit over the sennheiser, much more lightweight and comfortable to wear and the ANR without any batteries works like a charm in the 737.
In good pilot shops you might be able to try out a headset for a bit before you decide on which to buy. Best way to go about it in my opinion.