Biggest issue we have when using notebooklm is a lack of ambition when it comes to the questions we're asking. And the pro version supports up to 300 documements.
Hell, we uploaded the entire Euro Cyber Resilience Act and asked the same questions we were going to ask our big name legal firm, and it nailed every one.
But you actually make a fair point, which I'm seeing too and I find quite exciting. And it's that even among my early adopter and technology minded friends, adoption of the most powerful AI tools is very low. e.g. many of them don't even know that notebookLM exists. My interpretation on this is that it's VERY early days, which is suuuuuper exciting for us builders and innovators here on HN.
Their new models excel at many things. Image editing, parsing PDFs, and coding are what I use it for. It's significantly cheaper than the closest competing models (Gemini 2.5 pro, and flash experimental with image generation).
Highly recommend testing against openai and anthropic models - you'll likely be pleasantly surprised.
Actually, some of the people polled recalled the Google AI efforts by their expert system recommending glue on pizza and smoking in pregnancy. It's a big joke.