I'll add my 2 cents here, even though no one asked for it.
If I did it all over again and bought a car that didn't already have an APR tune, I would strongly consider EQT due to their reputation, overwhelmingly positive feedback, and some of the nice features you get with the AP such as its traction control. I would consider IE as well, because the flex fuel solution is badass.
That being said, I absolutely adore my APR stage 1 low torque tune. The main reason why is it because it isn't pushing the turbo to the limits, so it simply targets 300wtq and holds that as long as possible. And with a torque-targeted tune, the ECU will spin the turbo more when the weather is hotter to make up for the lower air density. Because of this, and because the LT tune doesn't max out the turbo, the LT tune is incredibly consistent even when we get to 90-degree-plus days. Of course there's still timing pull due to higher IAT's -- we can never avoid that -- but the turbo headroom is really nice for more consistency. I would wager that you could dyno this tune in 50*F weather and 80*F weather and get results that are much closer than if you were running a higher-power tune that was squeezing out every last bit of power under ideal conditions.
It is significantly faster than stock, but it is NOT the fastest tune. Also, APR has not done all of the things EQT has done to improve driveability.
