I'm pretty happy with it, been running it for about 3 months, on all 3 levels. Had my truck on the dyno a few times now. With the tune (only dyno'd stage 1 and 3 due to time constraints) the torque/hp curves shift to the right, so it actually reduces total torque/hp up to around 2200rpm. Then the power curves intersect and the tuned curve spikes way up. So, like everyone says, if you drive it like a granny you'll see the mpg gains, if you get into it you'll see the tq/hp gains. Don't have anywhere to host the pics, but I can upload dyno data to support if you want.