I only have the basic Bosch troubleshooting SIS software and I actually like it. Only had a couple of issues with it being incorrect or not to sure how closely to follow the guides but overall I find it easy to use.

Just covers
SRS
ABS
Engine Management

on most models then add ons for some others. I think you can add other discs to it such as the extra wiring diagrams which I believe are similar to autodata but haven't a clue on costs.