I don't own a car, and Google Maps was absolute shit for MUNI here in SF. Specifically, Google Maps would pretend that there was a schedule and give you directions accordingly, but if you actually tried to follow the directions you'd get to the bus stop and find out that you need to wait 15 minutes for the next bus instead of the 1 minute Google Maps thought. At this point it's been several years since I've used Google Maps, because I eventually decided there was literally zero benefit to keeping it on my phone when I always ended up using Apple Maps for everything.