Just finished editing my review - done a little different.
I found they worked well and were comfortable.
Perhaps later I make compare, with P3s, but others have already done this.
I found the ANC very good - I spent an hour sat in a coffee shop near an open door The shop and road noise was gone. The sound quality was good even though it was AAC and not a higher quality codec.
The key selling point for me is the amazing battery life.
I think they will be the ones I use outdoors or when travelling.
The only slightly negative comment being that they are not suitable for sleeping with them in.
