Perfect to using multiple AWS accounts and isolate some sites. with this features below, it could even be better:
- Not only automatically isolate sites by domain, but also by path, this way we can give it different site permissions or better manage more complex sites (example, for different logins or different features)
- support setting a bookmarks to a specific container, to avoid having to manually manage that
- much more icons and probably also more colors
- move tab to a (new) container, open a question windows, allowing it to remove cookies, storage, history from main account and choose if a existent container or create a new one. Doing this manually is a pain

This could make this perfect... but still, as it is now, is still VERY good, totally recommended