For what it’s worth, I’ve seen bizarre behavior from GPS based driver guides. In Kansas City, Google Maps sent me more than once on an unasked for visit to a side neighborhood. A careless finger dab on a screen can change a route to a side track and still the destination seems the same.
I've not had opportunity to use GPS driver guides.
What I do like is Google Maps with satellite view.
I can zoom in and out, check surrounding roads (in, and out, and if I miss a turn -- how to recover) before heading to some address in locations I'm not familiar with.
Pulling over and studying the nav problem prior to getting in the middle of one, helps. It also helps to have a laptop with roving internet access, instead of just a smart (ass?) phone.