Dragy 10Hz GPS drag strip simulator

Has anybody here tried the Dragy GPS drag strip simulator? My wife bought new one for my upcoming B day and from what I seen on the old YouTube looks like it's pretty accurate give you a good idea what you might expect. I'm going to try it out either tomorrow or Thursday and I will post the video. I'm going to test it in my 04 Blazer 4.3l 2wd 2dr. only thing done to it is a K&N cold air intake and some tuning with HP tuners timing only. What do you guys think it will do. let the guessing begin.