If the sales person didn't help you set up the on star, blue, auto and hot spot then they fail you from the start. GM sends them the system unloaded.
But yes software problems are there, GM say that some of the function will not operate properly until the updates are released. Which I don't understand how they can legally sell a new vehicle with safety fetchers you paid for that don't function. Do those function work for you? or are you waiting on updates?
The only things I have not working at this point that I know of are: Cruise control radar ( gap distance adjustment) and lane assistances is a little sketchy or it's just crap.