iTunes 11.0.1 does not react on AppleScript queries, which ask for the song repeat state. It is always off, no matter what song repeat was set at. Therefore Hypnos counts the time to play for a given amount of tracks wrong, when song repeat was set to “Repeat one”.
With the soon released version of Hypnos it is again possible to shut down or restart the Computer. The new version includes also several bug-fixes. Lets hope Apple will approve the new version soon!
Check-out this great review of GuguSoft’s app iTunesShut (which is now called Hypnos) from Mac App Guide: