Which Tuner?

I am thinking of getting a tuner for my '06 GT. The only mods I have are Corsa mufflers & K&N Aircharger CAI. The only other mod I am going to get is pulleys. Which tuner do you guys recommend? I want to tune it for premium fuel, and, of course, be able to read & clear codes. I am looking at the Xcalibrator 2-is this a good choice? I'm kind of "old school" (I'm 60) and haven't done anything in the computer end of an engine. Can you help an "old brother" out?

Thanks Jenn

Hi Jenn,
No, I haven't come from the vintage forums, actually I have been on this forum quite a bit. My '06 is my 4th Mustang, my first was an '85 GT (I still have it), next was a '97 GT 'vert (it got totaled), next I had a '00 GT 'vert which I sadly sold to get the '06. So, I am familiar with the newer platforms, just haven't done any re-programming.
My new baby runs like a bear with the exhaust and CAI, but I know there are more horses in there just waiting to get out. I didn't have any problems when I added the muffs and intake, no CEL's or anything. My son has an '04 GT, he got a tuner and said he got a very nice increase. I'm ready to go the tuner route. Thanks for the info on the SCT Xcal 2, at this point, it looks like the one I'll probably go with. Mustangs are fun!