Just ordered Wheatley Tune - Experiences?

Well I decided to go ahead and bite the bullet and step up from my Hypertech PP3 to a custom tune by Wheatley.

(BTW: I'll be selling my Hypertech programmer once I've returned my current PCM to stock settings if anyone's interested. Model 30022.)

Anyway, I'm interested to hear what your experiences have been with the performance after a Wheatley tune, if you've tried it.
Another thing I'm kinda concerned about is the possibility of getting a P0315 code after installing the tuned PCM, indicating I need a crank re-learn at the dealer. Has anyone had this? How much does the stealership charge for a crank re-learn?

Anyway, thanks in advance!

I have a Nelson tune, when i got the error code my dealership charged me a bill.

Yep, I've been quoted $80 for a CASE relearn if I need it. Apparently the only thing that it hurts is the PCM can't detect misfires if you don't get it done. I'll be getting it done if I need one though!

Here's a thing...
The dealers around here don't want to touch it. I think they're maybe afraid that they'll wipe out my tune or something....
I guess I need to start looking for a local shop that can do it... all they need is a GM Tech II scan tool, right?