Sad to say, this module is missing a lot.
It is a very good beginning, lean, effective, simple, but seems more like a developer module than a real module, ie. the configuration refers directly to tables, so nothing pretty with select boxes or any intelligence built in.
It also completely lacks some standard functions like "Module Class Suffix", which for example makes it unusable for my Joomspirit template.
Some features would be easy to add it seems, like filtering on which user groups should be included, ie. it's a simple extra sql query, but despite the fact that it refers directly to sql, that part seems impossible to achieve.
All in all, it seems more like a version 0.1 than a 1.0