I have seen links and references to several OBDII reading devices n
software packages.

I have been previously driving a car that does not have such read out
capabilities, and now have acquired a 2006 Toyota 4Runner.

There have now been years since the first OBDII standards came into
place. Has one such OBDII reading hardware and software package come
to stand out as being preferable to the competition ? Or just
software, alone, or hadware alone, if they are clearly good.
Price is not as important as that the package be of quality.

Thanks,

Forrest