Does anyone have this? For those of you who don't know it's basically a G-tech. It measures 0-60, 1/4 mile, cornering G's, 60-0, and like the G-tech it calculates horsepower. I wouldn't mind to know how accurate and easy to use it is. I know the second-gen G-tech is straightforward and from what I've seen they've worked out some of the bugs from the old model (accuracy being the main problem). Any opinions on getting one?