GTN750xi "Teligence" is a useful idea but has been executed poorly. Dealers, users, and I have been asking for an update to the software for years with no action from Garmin. Tuning the radio is limited to nearest or destination only. For those that fly any distances, this is worthless. I want to be able to say "Tune to 123.45", which is common for XC IFR flight.
Garmin, why have you been ignoring this request?