I don't even have to leave my code editor if I install the extension in my IDE. And with an IDE extension it can be aware of the actual context of my codebase to the point where it can write code samples that reference my own methods and variables.
It's incredibly helpful. I've seen and used a lot of different learning techniques over the years. I started out learning coding from physical books. Then it was online bulletin boards and forums, and Google. But AI agents and chat have replaced almost all of that now. I rarely waste my time on Google anymore when I can get more relevant answers, faster, right in my IDE.
Sure there is the occasional hallucination, but its not that much worse than terrible answers on Stack Overflow, or junk blogs and outdated docs that Google surfaces because someone SEOed the hell out of them.