I use LLM as a super Stackoverflow. So far it has been helpful. For code gen, 8 out of 10 cases, the code won't compile and need fixing. LLM did help a lot in learning new topics. Gemini did help tremendously recently in pointing out a new approach to a problem I was stumped on. Though the code it generated was garbage, the code did provide insight on a new approach which I adopted to make it work eventually.