Insomniac Browser - Anyone have experience with this?

We are currently investigating a case that relies heavily on the use of the Insomniac Browser.

https://insomniacbrowser.com/

Before we purchase the subscription to begin testing, I wanted to see if anyone has already taken a look at this browser and what you found.

How did you recover artifacts?
What software did you find best in retrieving information relating to the browser?

What tips can you give?

Any information would be greatly appreciated.

Kind regards