The tolls option is great. Rather than having an "avoid tolls" setting, it just gives you multiple options and let you decide in the moment. For example, you might enter a destination and it'll give you 3 results:
- 35 min, no tolls
- 30 min, $2 tolls
- 28 min, $9 tolls
Google Maps doesn't understand the concept of "some tolls", nor "I want tolls sometimes, but only if I'm in a hurry or the time saving is significant".
Everything else is just that little bit nicer too.
Sometimes it’s not even much of an increased distance, just departmental roads with a lower speed limit.
And gas/food is always cheaper off the highway, but I will admit French highway service stations do have fairly clean and free bathrooms.
I recently told my children how it was like to take the highway during summer time about 40 years ago when I was a kid.
They had all kind of entertainment, large tents for families with babies (and free diapers). There also was a sort of large national game for children where they would "hunt the spoils" - get points for actions that reduced fuel use (opening windows, checking tires pressure, etc.)
There are no more such things today, the areas are just overcrowded - but I agree that they are very well organized.
I like it for intra-town commutes where I know where I'm going already and just want to possibly try something new, but if I've never been to a place before or want the "works best 80% of the time" route, maps all the way.
YMMV.