As a reference, I'd use a search engine first, but it's a matter of personal preference. Usually I'm only short in syntax and a particular language's native functions. The only benefit I could foresee is avoiding the rude, condescending snarky comments from the experienced developers on stackexchange and the like, but I almost never register to post, so avoid all that. I did see a benefit in the area of (real) language learning, when I can ask it to translate something. Then break down specific parts of the response for clarification, switching between my native and the language I'm trying to learn. That was mind blowing.