yeah, does what it says
it IS just a wrapper application, like others said, and in addition to that, there are no options in itself. Any options and raw functionality required to make a connection is through Apples Screen Sharing application. It seems like this program was rather thrown together. If a newline character is pasted into the ip address field, it will distort the UI. If you want better functionality, grab something like the enterprise viewer that RealVNC has on their website (the viewers are all free, the though some of the servers are not).
Kyle Falconer about
Remote Desktop - VNC