Very minimalistic. Only settings-options are region and theme, so basically only region. Bc theme has nothing whatsoever to do with search. Anyways, I miss at the very least safe-search-on/off & open-in-new-tab and, at most, bc ghostery boasts itself to be privacy friendly, a filter-out-chosen-domains (for which I currently use another extension that doesn't work with ghostery search yet). Related to this last feature request-wrapped-in-a-sour-azz-complaint I can think of another feature that I up till now never have seen in any search engine yet: bundle all results from the same domain into 1 single 'group' result so that not the first 5 pages are plastered over with 20 million links to different amazon.com products