Personally, I think it should have looked more like the 240Z than the 300ZX... where's the muscle? It just looks fat...
What I dislike most about it though is the tail lights. Maybe they'll look nicer in real life, but from the pictures I've seen they just look like some apprentice car designer has stuck on some "futuristic" red over half of the car.
I'm disappointed. Nissan has some stylish cars (e.g. Silvia) and some very muscular cars (e.g. Skyline) but they only seemed to use the stuff from the latter with the 350.
Can't do much about it now though... here's to the 400Z heh