The roads are mostly reasonable and safe. There are always going to be turns and intersections that are more difficult than the others. Google (and every other consumer map provider for that matter) has a habit of picking unnecessarily complex routes to shave a few seconds. Unnecessarily routing through difficult intersections and using a dozen side streets to cut the corner off a route are just specific examples of that.
You've noticed Google Maps do this? I personally find Google will take the simpler routes even if sometimes a faster route comes up while driving. Sometimes on a longer drive I'll see it is showing a greyed out route I could take that is sometimes even 5-10 minutes faster but it won't suggest it to me.
No whereas with Waze it is a lot more aggressive and it will take faster routes and shortcuts even if it means taking a gravel road to save 30 seconds.
