Just got the Aim Solo 2 DL through
Corner3 Motorsports. Love it and i havent even scratched the surface of all its capabilities yet.
Its OBDII compatible which will provide you RPM, speed, brake input, throttle position, coolant temp and some other data that you will be able to analyze using their race studio software.
The DL2 can also serve as a dash replacement, providing RPM, speed and shift light functionality.
In Nissan Challenge we have been using it to pick apart our laps and find places where we can improve our driving. You can even compare your lap against another drivers simply by sharing the lap file and importing it into race studio.
Highly recommend it