It would be nice to be able to create a link from title to specified page.
Also, being able to select whether to display empty categories or not, would be neat. I got little confused at first becouse empty cat's were not displayed at all.
Bug: If there is nothing in the field "Auto-expand these categories (input slugs separated by commas):", last category will be always expanded. If you just put there something, all the categories are collapsed as supposed to.