Not good enough for me I'm afraid.
- The window is annoyingly small and can only display a small subset of your tabs. If you're working with 100+, as I frequently do, then it is frustrating not to be able to see the whole list of tabs (or more of it anyway). This is just a clumsy design flaw IMO.
- You can't select multiple batches of tabs. Ideally you should be able to hold down ctrl (as you can in Windows Explorer) to be able to select a batch, then click and drag again to select another batch, while maintaining the selection on the first batch.
- Mostly, I only want to get rid of tabs I don't need anymore. Instead of being a nice big one-click obvious button, the delete option is buried half way down a menu which requires another click to open. (Seriously, why is "Close tabs" not the top option here? The top option is "reload tabs" Seriously? You think more people are selecting multiple tabs with the view to reloading them rather than closing them...?)
This combination of factors makes this addon too cumbersome and frustrating to use. Uninstalling.