well im using reason but i've never tried cubase. in my opinion reason is a solid program for producing music. the on screen interface is well layed out and looks great, the subtractor and maelstrom synths are superb, the redrum computer has loadsa good drum patches to play around with. you could get some really professional results out of reason. however, some people i've spoken to at my college say they much prefer cubase over reason. i guess it's personal preference and which progam you make the better tunes on!