We just installed the AQ-1 in my car and it is working flawless. We have very limited time using it so far but the graphics are very easy to read, you can set it to start recording at a certain RPM so you don't have to remember to turn it on. The unit itself is superlight, the wires are all imprinted with the intended use so wiring the unit is very easy.
Best of all I had Greg Nakano and Lawson Mollica from AEM helping me out and both guys are awesome to work with. In fact, because of the quality of the product and the professionalism of Lawson and Greg I decided to become an AEM dealer.
Good luck with whatever data logger you choose.
Mark:finga: