For stuff that doesn't matter too much, or is an easy search, i use DDG, then fall back to Google if i don't find what i need. For anything serious, i just open up a Google tab :(
Every time I search anything in someone else's computer (with google) I find it much harder to find what I'm looking for, sometimes I can't find and just go to DDG.
The only times I use !g is when I find some pretty obscure programming errors and no (useful) results on DDG, and only once in a while google is able to find anything better, usually the results are the same.
I wonder if the difference has to do with variations in search strategy or interests, or a combination of both. In any case, DDG does seem to have been improving, and I don't see any reason to believe that the trend won't continue. Particularly since Google seems hell-bent on making their search useless.