It sounds pretty amazing. Was at a meeting and it was thrust into my ears without me knowing what it was. I can't believe how small it is for the number of drivers inside. I listened and loved it. The size made me think it was the 5 (which I could justify buying). Sadly, its current price is too rich for my blood.
Did you get a chance to compare it to the Roxanne? If I remember correctly, they have the same base price and directly compete with each other.