I have been meaning to post more of a review on our experience with the Adapt-X as well, but time keeps getting away from me.
First, I have had it on the stock tune recently. I have some unrelated dealer work going on and it was easier to leave it off for a week or two with multiple visits vs re-flashing each time. My wife has already asked when is it going to be tuned again, "as it drives so much better".
For us the adapt-x was intriguing, as 93 is hard to find locally -- only one gas station in my city has it. So being able to swap to a 91 on the fly and not worry was ideal for travel in our area.
I have had more "traditional" tunes in the past with the back and forth with the tuner, but being this was a daily shared with my wife I did not want to have to deal with that. The adapt-x has worked as promised and I knew we were not going to do major engine upgrades, everything they listed as compatible worked for us (plugs, catback exhaust, intercooler, K&N, etc)
So after taking the gamble and ordering, we have been very happy. The response times to questions before and after the sale have been amazing!
Originally we were running a 91 E0 (the most prevalent premium fuel in our area) pretune and on the initial install. After reviewing the dragy results with Monster, they highly recommended a 93 E10. Once we found a gas station near us offering 93 its been a significant improvement in performance. I have not had a chance to run it since our IC install and I am looking forward to those results now as well.
I can say this is not a feel tune. I will need to make some new dragy runs, I swapped my phone over to a different OS and didnt save past results. Interestingly, I also seem to get slightly better MPG with the tune. I just took a trip with the stock tune and a few weeks earlier took almost the same roads, stock tune resulted in 2 MPG less than last trip I logged. Could be a one off, time will tell next time I run it with the tune.
For us it was the right tune so far, but each driver has their own specific needs and wants.
