Advantages of having a gryphon php?

[str088]

I was just wondering what gains have you guys seen in your vehicles performance ever since you guys have installed the programmer? I also have a cai installed in my truck and just wanted to know if anyone else has this and does the tuner compliment it very well, as in do they improve the performance of the vehicle better together as opposed to having one over the other. I know that the tuner helps solve the lean problem that the truck has, but disregard that. And does the tuner change the sound of the truck? Thanks for the replies in advance.

Also which would be better for a daily driver as far as throttle response, acceleration. Performance or tow. (obviously tow is more for pulling something) which one do you guys use the most. I ordered 91 performance and 89 tow.