DWS on my 2008 OBS and on my 2012 Impreza Sport (Swapped tires before I picked it up - Stock YOKOs, IMHO went against the whole premise of getting a Subaru). Very low noise, a little softer ride than the OEM tires, excellent traction for wet and snow use. I only had them for about 25k on the 2008 OBS and they still look brand new. Have a little over 15k on the Impreza - same thing. Have no comments on the Pure Contacts; although they we considered when I purchased the DWS tires.
Edit: Expect 1 or 2 MPG "hit" for the DWS, depending on how you drive.