The TMax's potential and promise of "no more dyno's" is at least partly unjustified. Some have gotten by without. A good numbers of others, however, have not. Even with exactly matching hardware builds tuning has sometimes (too often) been necessary to really get them dialed in even with the autotuning function on board.
That being so it is important to remember that the TMax package is proprietary to one relatively small manufacturer (compared to the size of many) with a very small support network across the nation having familiarity with it. Getting a tune done in the field can be impossible to do in some areas without traveling literally hundreds of miles. That Zippers willingness or ability to always provide timely and effective technical support themselves is a real question mark makes the limited number of tuners in the field even more a problem.
you are correct, for those looking for "good numbers" will need dyno time. question is-----will the dyno tune they get be like so many others (no matter which tuner is used) and drivability suffers because someone is looking for a huge hp/tq graph for braggin rights? with tmax, you may have to pull a little timing if your build is chitty, or add timing for more power, but for the average consumer, it is plug and play with instant buttmeter improvement that gets better as more miles are put on the bike. more linear power and great economy for a self install unit is what makes the tmax a good choice.
also look at poor build choices and multiple dyno tunes resulting in unhappy customers. the door swings both ways and there is no perfect world. well, maybe for those fortunate to be within a couple hundred miles of one of the very few great builder/tuners in the country.