I've had it for a few days now.
I'm very impressed with the new program. All of the programmers and boxes I own only know one setting (kill), so I decided to play around with it on that setting.
I loaded the highest timing setting, the highest duration setting, removed all torque management, and went to SW9. I cannot say I notice a huge difference in either throttle response or power.. BUT.. There is noticeably LESS smoke on the highest setting. Same power, less smoke = great in my book.
I also noticed that the cruise control surge is almost entirely eliminated. I say "almost" only because I was able to get the cruise to surge a little on hills. I usually don't like running cruise on these hills anyway, as EGTs can get out of hand quickly.
Running around town, the REVO is much better than the hold software. You have far better smoke control with the right foot, and you don't end up taking out 4 lanes of traffic if you bump just a little too hard. The smoke is still there if you want it, but you have to REALLY put your foot down to get it to smoke.
I've tried many different version of the SMARTY, dating all the way back to a replacement CaTCHER ECM that I ran for a few years. Without any question, this is the best update and best offering they have produced for the VP crowd yet. I'm going to continue to play with the different settings and see if I can find the "optimal" for my setup.