for real mate. Spy uses it for the mixdown and as im sure you already know his shit is the dogs bollocks.
If you buy it from a software retailer it costs more than cubase actually. Its a fullfledged multitrack recording ting ting + midisequencer. All in all kick ass.
dont use it myself right now tho (i work in logic) but im sure i will some day.
nuendo is quality for your audio side of things but wank for your midi side of things, its dooable but chewy as fuck you should try reason 2 instead for knocking your bits of tune up, audio and midi then export them into nuendo put em together, mix em,eq em,add your plug ins/effects then mix the monkey down