Micro tuners and the 7.3 L Pwrstrke?????? Which one????

I've been trying to research this but everybody has there opions that sellthem! I'm looking for people that have actually tried them! Superchip 1705 is what I'm leaning towards but right now my mind is open for any suggestions. About my rig...99 F-350 4X4 Crew cab, 33" tires 4" exhaust with K&N, I put a 9.5' camper on the back and tow a 25 ft enclosed snowmobile trailer. I have 113000 miles and no problems so far!