I was never into Commidor64.. but it Was (and as far as I know, still is) great at seeing all (packets sent and received... it was/is hackers heaven, for those that can still read the coding... seems not many can do much more than read scripts anymore though :p .... thankfully, we do have a few other old timers here that can remember what we used to have to go through)..
Sometimes old tech is still useful.
I am not sure how the 64 is used today?