I've spent some time with Afforai and have been really happy with the results. I know this will come in handy when I return to grad school, so this was a purchase to put in my toolkit and come back to. But, I decided to give it a run through by summarizing and lengthy PDF. The results were impressive, and saved me a lot of time by not having to read the entire industry report. I can say the care and thought that has gone into the interface makes Afforai very easy to use. There are many options for digging deeper into research, like adding multiple docs (and URLS) to a chatbot, asking it to dive into the resources, and options so you can repurpose successful prompts. I also like that Afforai offers API to GPT4 (at higher tiers). Even if you don't have an immediate use for Afforai, it is worth investing in for future use!