I installed the Tune+ WGA last month and signed-up for Lifetime tunes as part of the need to get the WGA working to its fullest.
As been said many times over, Adam's turn-around-time is excellent. He will respond as fast as within a few minutes to a couple of hours. I don't recall having to wait one day to the next. And even occasionally over the weekend.
The WGA upgrade and tunes have definitely improved how the car feels. Power delivery is immediate, strong, and very linear (progressive) all the way until it begins to taper off.
As for tune iterations, things were dialed in sweet by #4, and from there to #8 it was all Adam tweaking things until they were just right.
All in all, highly recommend Tune+ to anyone considering tuning services. The FiST is great in stock form, but it can be made even better and I would recommend starting here. Once you have the engine ticking right, then you can begin tweaking the areas that are asking for it once you begin hitting those limits.
I recently put in a track day at Laguna Seca and just loved how quickly I could get to WOT out of turns and know the car wouldn't complain. This car is definitely a lot of fun to drive. Fastest lap time --on stock tires, brakes and suspension-- was 1:59:53, so there is room for improvement starting with the driver, but I am sure going to have fun along the way.
Thanks Adam and keep up the good work