This tool has really been a time-saver! I started with the free version to test it but upgraded it shortly. It is so simple to use, and most importantly the price plan is very affordable, considering what you get! As a 3D designer it has helped me "chat" with technical documentation, or transcribing and summarization of recorded meetings etc, but it is also very useful for simple stuff in every-day life, like if I want to learn something new, planning my monthly budget plan etc.
File ChatAI is truly been a great experience for me so far!