Installed one last Friday. Kinda figured there would be a lot of drama around this on forums, since it's definitely difficult to objectively measure improvement with and it's got GTR/Porsche/Corvette tax pricing.
That said, my initial impressions are positive. Comfort mode immediately felt, well, comfier, and in sport (I think DSC calls it 'track,' the car calls it 'race') body roll seems to be reduced and I have more confidence in high speed curves. Hard to say past that, haven't messed with their software yet other than to confirm the controller was functioning and reading ride heights.
As far as how it works, it seems pretty simple, they have tables in the software that adjust damping rates on the fly based on the motion of the car as well as driver inputs. They provide a stock off the shelf tune. It's all adjustable as long as you have the proper USB cable.
Concerns/issues/questions:
Noticed that I can't scan codes on the DCC module via obd11. Hopefully the controller software can do this. (but yes, I can disable traction control).
At this time, only the stock dampers have a tune provided by DSC. I was told they were working on the B16 damptronic coilovers next. They (tractive) sell high end coilovers (most of the track guys here seem to avoid B16s for serious tracking) but they seem designed for the DSC standalone system. Not clear if this would work for those or if they're coming out with an MQB coilover designed for this that would meet the needs of those guys.
Their FAQ says minor changes don't require a re-tune (specifically lowering springs) but this seems odd to me.
I came across a couple videos about zeroing out ride height. Every indication from marketing says the system is plug 'n play. No clue if I should do this or not, or if it would effectively replace the expensive dealership alignment procedure for ride height calibration.
Will be interested to see how it goes once the roads are really warmed up and I can put sticky tires on. If you're after bang for buck, I doubt this is the mod for you (and wait til you see the prices on the coilovers they sell). Personally, I really like the DCC setup and getting a bit more out of it is nice. Price, well, everyone's budget is different. Glad they made it available, can't speak to the earlier release issues, but I'm happy when higher end products trickle down to this econo-box platform.
Maybe if there was a toggle to use a OEM-like static tune for people to compare with? I'd love to do an a/b blind test but it's a bit of work getting it in and out of the bracket.