Mark,
as you know I had the car done end of January.
Previously had a D1 speed controller so was not expecting it to be much different really but I was very surprised with the results.
The throttle is much more responsive a bit like the D1 but not as jerky, much more smooth and linear. What surprises you most is the pull you get in every gear it really is impressive. Add to that a slightly better fuel economy (once you stop enjoying the torque) and it really makes sense.
Best money I have spent on the car, only thing I would say is get everything else done first to see the best results
I won't be doing any more tuning to the car as I got everything done that I wanted first and I am more than happy with the results.
Only thing that would be better would be if you could get even better performance and better MPG
Dave