It works fine, but requires some performance overhaul. It slows down overall tab loading significantly... so I have needed to disable it.

Please consider updating this extension to Manifest V3 to take advantage of its improved security and privacy model, and to better support a “click to activate” style of usage where access is only granted when needed.

The tracking is just horrible... why not just let me pay and stop all the tracking?

Other than that it's a good service.

The amount of data this add-on collects from its users is mind-boggling.
https://readwise.io/privacy

Readwise and the team behind it are incredible thinkers and the work they've done so far is simply transformative in terms of how it has opened up my ability to focus on creativity first - productivity is just a by product of the workflow. Thank you for building and continuing to refine your product - I cannot wait to see what improvements and enhancements you've thought of. Cheers!