I purchased Tier 2 exactly a year ago when I was testing various "research AI" tools to assist me in creating client health protocols. I have an incredible amount of educational materials, that continues to grow, and almost impossible to keep up with. Afforai handles it all exceptionally well, and I have continued to try other LTD's over the past year and Afforai continues to be my go-to. Customer support response has also been superb. As of this review, they continue to make upgrades on a regular basis, which is always a good thing in my book when purchasing an LTD. I do see areas of functionality that could be incorporated that other tools are using, like ability to provide YouTube links to get real-time transcriptions, website links, integration with cloud storage documents, etc. These are starting to show up in newer research tools and would really keep Afforai on the cutting edge. Hope things continue moving forward! It's a great tool!