Do you offer an interactive demo on your website? If not, why?

Have you ever tried offering an interactive demo for users to try your product before signing up?

I'm asking before I'm trying to validate my business idea Dymolab . Let me know if this is something of interest to you.
Here's a demo of TalkNotes created using Dymolab: https://www.dymolab.com/share/HWwGP9OyiO8g-77yx17

PS: I'm running an LTD right now for Dymolab. Make sure to check it out.