I could navigate the city with a map printed even at that zoom level, but good luck trying to do that with google maps.
That's the single most important point for the map.
I didn't consciously try to compare the maps before, but looking at the differences now, google maps seem thoughtless and completely random at what is highlighted, how parts of the city are named (some use names, some numbers, for no reason), what parts are shown and what are not.
I prefer the old style of Google Maps, when roads were marked more clearly. I used MOBAC to get offline cached tiles and use them with Galileo on my iPhone and my own map app on my laptop.
There's a theme called OSM Bright that looks good, and when I figure out how to set it up, I plan to switch.
One zoom level in from that it shows the names of all the major roads, glorious. With google maps it seems you sometimes have to zoom right in to where a road is half the screen to see the names. I switch to OsmAnd on my phone for exactly this reason.
That's the single most important point for the map.
I didn't consciously try to compare the maps before, but looking at the differences now, google maps seem thoughtless and completely random at what is highlighted, how parts of the city are named (some use names, some numbers, for no reason), what parts are shown and what are not.