I was able to use a borrowed pair for a few weeks and my only complaint about them was that they had little or no sidetone when I talked on the radio... (Might have just been the headset, but it was like that on multiple CRJs). It was like talking into a void and took some getting used to. Otherwise I think that they are very comfortable and do a decent job of filtering out some of the noise...

Don't know how much they would filter out in the EMB120 though.