I have used the Bose in the past and it is a very good headset. I currently use the LS1 in an E145. Try out the headset with the basic ear pieces first. I didn't like the no roll foam ones because they are too hard. The yellow ones (just like the cheap throw away ear plugs) were the most comfortable and blocked out sound about as much as a set of DCs. The custom ear mold bock out even more exterior sound while being very comfortable. The belt clip does tend to break but from what I've been told LS is changing the design for it so it shouldn't be a problem for long.