I like how the single adjustment range works on the Konis on my m3, so I was delighted to get dual adjustable fronts for my BRZ. they feel the same, exactly. Koni's consistency is sweet.
The ease of adjustment on the fronts is great, I find I only need to dial the compression up front a bit to change character for track to where its bordering on too stiff for street.
I like that the rears are set, they are set right on compression. I keep the rebound fairly fast on all four corners for best grip and traction street or track. Ground control set the spring rates perfect - atleast for my aggressive style of driving and sticky tires.
http://www.koni-na.com/double.cfm