BethRa wrote a review of Mammut White Rose GTX Boot - Women's on May 13, 2013
It feels odd to post a review about boots you're sending back, but in case it's helpful:
These feel true to size if a bit wide (which normally works for me). From a visual inspection, they also seem very well made (looking at the stitching, the relative symmetry, etc.) and the upper felt comfortably snug.
However, the sole is incredibly stiff , more so than all but one pair of hiking/backpacking boots I've had previously (Montrail Moraines), and I found that level of stiffness really uncomfortable in the long haul. However, if you ARE looking for a super-stiff sole, these may be the boots for you.