And a good day to you, it will be a better day if this rain stops
Just had a look and my system is 1.12.0, didn't even know there was a later update. I did make one call to home when I installed the unit to check it did work. I very rarely use the phone in the car so cannot comment on how reliable it is for calls. 99% of the reason for getting the AAWireless was for mapping without using cables, the cars system takes for ever and all the button push-wait, button push-wait is a real pain.
My wife's new Kona is not much better either.
I am of the 'If it ain't busted don't fix it'. If I have problems I will probably update then.
In any case please keep us updated with your setup, and if you do update the system whether it is any more reliable.