I kinda agree with eric, about how much u might use it. If u just play with the presets the initial sounds seem a little uninspiring . But, the more u play with it the more powerful u realize it is! Its really unique. I recommend it, but only if u got your main arsonal of VSTi`s already. Rich
I found it very useful for doing live music for a theatre play this summer. (Shakespeares "the tempest").
I mainly did soundeffects; with the huge amount of controls T4 can be very "expressive" and versatile.
Hmmmm....... I'm not the authority, but it sounds a bit thin for my liking and is complex beyond my capacity to take it all in.
I'm not that crazy about "space ship sounds" or wanna be harps etc. If I want instrument emulation, this would be the last place I would turn.
It is apparently extremely powerful, but the stock sounds are just not my flavor and I'd probably fare better learning to fly the space shuttle than i would at getting reasonable mastery of Tassman. There's lots of great stuff out there. Check it all out before committing your cash.