Been using DDG for about 8 years instead of Google search. Occasionally use google image search for matching an uploaded image. Use google maps for any local searches (credit to where credit is due its a superior map product).
Yandex and TinEye satisfy all my reverse image search needs. Google Maps is the only Google service I use. There is simply no substitute for Street View and it is fantastically useful and interesting. Even so it is only a secondary option and I use maps from OpenStreetMap through Organic Maps 90% of the time. I am satisfied if that is the extent of my relationship with them.