Three-year old thread but I'll chime in.
I fly the Saab and love the Clarity Alofts. You would never think so but the ear pieces are very comfortable. It takes a little* getting used to but they are awesome. The noise attenuation is very good and it's always quiet even through the climb.
I don't have a vested interest in having this opinion. I was able to borrow Bose, Lightspeed Zulus, and CAs for a week each before I bought my last headset and I went with the Clarity Alofts.
You may hear mixed reviews but I think almost everyone is happy with them.
My only complaint? When you see them, you'll shake your head at how a headset like it can cost $550. Excellent headset but a bit steep in price I think.
Save the money on the TSO version. If you have a company guy or an inspector on-board, just use the company-issued headset.