My current other vehicle is a Ford with the Sync2 MyFordTouch system. I paid for this specifically for the built-in navigation. The built-in system is cumbersome to use, and the maps were terribly out of date. Every few years an updated map SD card is avaiable ($150 CAD from Ford, $50 from eBay), but the maps are always several years out of date due to the incredibly slow processes of the 3rd party map company. I don't have extended experience with other companies' nav systems, but from the variety of test drives we took, I'd say that the cumbersome user experience was nearly universal.
These days I almost exclusively use phones running Android Auto / Apple Carplay and bluetooth the audio into the car's sound system. From what I've read online, I'm not alone in this. Chevy probably realized this trend when they made the choice not to include built-in Navigation on the new TB.