Poor

The software opens , loads the warning screen( do not use as main navigation system , duh! ) and closes. No responses from developer, poor customer service when you pay not only the tablet software but as well the desktop software. I should have read reviews hinting there are bugs and poor customer service. I will turn to other alternatives (and free)
I disagree with the posts where bugs have been allegedly corrected, this new version is not working

Jro21asa about Air Navigation Pro, v6.0.2