Well, I just installed it yesterday. I must say, I'm impressed with how well it performs straight out of the box. I put it on setting "C" which is the maximum setting. There will be a few days before I really can start telling much difference in power as the ECU isn't used to handling the extra fueling. It seems to be raising boost pressure to compensate the increased fueling a little too much because it'll lurch around 2k RPMs in 1st and 2nd most noticeably. I've noticed the lurch is becoming less and less noticeable the more I drive.
More in-depth updates will be posted as regularly as I can to this thread HERE