So as I work through a very frustrating communication (possible) error in my 2010 RR HSE I find my "Launch" brand ODB even with the "professional" version of software for the Land Rovers is near useless in trying to diagnose my possible module errors.

I see most people saying the IIDT is a must have, however after reviewing the RSW All comm is half to less the price.

As such can anyone point me in the direction of a comparison of capabilities and quality?

Thank you all.
MJ