Seems to be geared towards playback and promoting itself as a notation bridge for a DAW program. I would not say that the music printing capabilities are anywhere near Sibelius (or even Finale). It offers rewire both as master and slave and can be used with any vst instrument set and also comes with 10GB of good quality samples. However Sibeliuus is equipped with a set of good quality sounds and can also be configured to work with any vst instruments. It is much cheaper than Sibelius but I don't really think it seriously challenges on any front at the moment. My advice would be to put in the extra cash and go for Sibelius.