Waze

I will also add that, especially for the drive up into the mountains, Waze is better than Google Maps. For some reason, Google convinces you to go all the way to the West of the country and up and back East, taking up to 6 hours from Kutaisi. There is a shorter route that approaches Ushguli and Mestia from the East, via the Zagari Pass. This is shown on Waze and is only about 3 and a half hours, shaving considerable time (and fuel saving) from the journey.

Download Waze and use it to help navigate. It will (usually) alert you if your route has ZTL zones and give you alternatives.

Waze uses intelligence to map your route by the quickest one taking traffic and delays in mind. So sometimes it will be a longer route but you arrive quicker. I've found over the years when I ignore Waze I end up running into traffic and the route takes more time.

I used Waze on my trip to Tuscany and it worked flawlessly.

Waze worked well for ztl and parking

Waze has been vastly better everywhere here.

Waze is the #1 for ZTLs and reports.

All the OEM GPS mostly sucks compared to apps like Waze/Google maps/Apple maps.

use GoogleMaps or Waze to assess travel times/routes when driving. Their traffic updates are golden