Just something to think about. With all n one unit when something goes wrong with one feature you have to go without all your gauges and posibbly tunes until it gets repaired or replaced. I much prefer analog gauges with a seperate programmer loaded with DP tunes. I have the X Cal 2 and I love it, although shift on the fly is not something I need. The analog gauges are also much faster to read which means eyes of the road less. If my trans temp gauge goes out I still have my other gauges and tunes to keep me running. I'm not saying the all n one units are bad, I am just giving you something to think about that maybe you haven't.
Good Luck
NCH