Once installed & enabled it displays a multitude of currencies converted against the one of your choice...good idea.
HOWEVER they are all displayed behind a semi transparent ADVERT / copyright warning that says:-
enty of other modules providing the same function?
This only happens if you change/disable the backlink text or you are running the module on a site that isn't accessible via the web, ie an intranet. There are plenty of users of this module out there for whom it is functioning as it should and are perfectly happy with it!