I was compelled to request a refund for this product due to ongoing discomfort with its UI/UX. The following are aspects that need improvement:

- The PDF display cannot be further enlarged, which hinders my ability to read the file content in greater detail. Ideally, this should be adjustable dynamically.
- In the latest UI update, there is no filter to select the range of pages to be included in the chat. This is particularly problematic when I want to extract information from specific pages.

Several features that could be developed in the future include:

- The necessity for chat functionality in the form of images, as academic journals often contain diagrams that require specialized explanations.
- The need for prompt initialization, which can be customized for specific types of documents.