Google’s NotebookLM is genuinely useful. Feed it a pile of PDFs, research papers, or meeting transcripts and it produces surprisingly good summaries, answers questions with citations, and - its most viral feature - generates a podcast-style audio discussion of your material. A lot of researchers and indie hackers I know use it daily.
The friction is the obvious one: your documents go to Google. That’s fine for public papers, but uncomfortable for anything proprietary - client work, unpublished research, internal strategy docs, personal notes.