It could've been great, but is not. Obviously in the development of this addon is missing the contribution of a UX/UI and a software analyst.
Several issues like:
- the pages do not show in the bookmarks, and that is the only way to export them when reinstalling, wich make it unusable for me.
- tiles are static and non responsive design was used
- the preview is a bad bad idea, it should have been just as an option or button... UI is missing
- tiles cannot be added offline
- slow/useless animation
- unfriendly and unprofessional aspect in the same time
- painfully ugly icon that does not work with any theme...
- trying to promote a certain search engine... they probably paid.
- etc, etc.

It could have been brilliant, I would have paid for a good extension.