That hasn't been enough for me, so far in my experience. I think I'm too crusty and set in my ways after 25 years of learning programming.

I have found them useful for general explanations and it's decent at finding me sources or directly answering questions about codebases/architecture (like where the @appendNode declarative mutation directive is fired in sequence for the Relay updater system), but it's code output I've not found a good teach tool for myself.