Massive is an awesome synth but is very cpu hungry. Its one synth i generally always bounce down to audio. Obviously like any synth whether hardware or software it has a different character to the virus but if think its pretty much on a par with the virus although i havnt tried the ti version. For the price of a TI you could get hold of a second hand virus c of ebay, get massive aswell and still have plenty of change for somethin else.