I ran my D06's over the weekend for the first time and was immediately impressed. The chassis carries a lot of corner speed and generates loads of steering. One can put the car on the track and be confident how it will perform. It is also very responsive to setup changes.
The build was also a pleasure with everything going together very nicely. Agree with the above comments that its on par with other "luxury" kits. I personally think this is the chassis to run at the moment, combining the best elements from a few chassis. Very happy that I chose the D06, absolutely no regrets. Looking forward to running them again soon.