I've only ever been using Google Maps for the sattelite imagery, street view, and routin. For those things, Google Maps is still great. OpenStreetMap is what I use for orienting, find cycling paths, trails etc.

So I'm not too bothered by this change. What I don't understand is why hasn't anybody taken the Google Maps routing and use it in OSM apps? Might not be legal, but similar non-commercial projects it should be fine.