People posting CTD, are doing it as a joke. Eric was tuning for them, and may still be, for whatever status the company is in. Eric is a good tuner with a bad company, IMO. The software needed to custom tune the AP will cost a company $10K. Doing an open source tune yielded better results with my bolt on car. Mine came with an AP also. I sold it and that covered the cost of the open source tune.
AP provides a good flash tune. But, OS tuning can give you better detail, without the shop having to fork out 10G's.
What are your plans with the car? If you are going to stay bolt ons with some fuel, look into getting a boost control solenoid. They are $120 and can allow you to run 3 on the fly maps off the iDrive. I have mine set for Eco, stock, and have fun.