at the moment, its a firm no, had a go of the demo, i got it running fine, looks good and i love the interactive cockpit, really like the physics, as has been moaned about constantly the GUI isnt the best but its not unuable, but damn the sounds are horrific.
when there is more content available preferably in the form of tintops(not big on OW sim racing) and the sounds are sorted out, then maybe i'll consider buying it.
but yeah its not nearly as bad as some people are making it out to be, just needs some work, but at the moment there is no real reason for me to spend money on this when rfactor has more to offer me at least for the moment anyway.
i can see me buying GTR2 before i get NKp, mainly because the cars appeal to me more, but we'll just have to wait and see.