Regarding DDG on general, I've been using it exclusively as my first search provider and it has ramped in quality searches at a nice clip. I find myself bouncing through to the above search-flow less and less over time and I'm now in the process of deGoogling other things.
Keep donating to those privacy focused services where you can! DDG is a prime example of showing how these services can exist without an agenda, other than customer oriented features.