paw3255694 wrote a review of Therm-a-Rest NeoAir XLite Sleeping Pad - Women's on August 15, 2012
So far so good. It feels much warmer than the old rectangular yellow version which was without aluminium foil inside. However, it feels a little bit less comfy, it is tougher.
I think it was worthy to upgrade. Quality of materials seems to be good but more field testing will tell how durable the mat is.