I think it's great, inside and out.
I love my E46, it's beautiful also, but they have to evolve, and it only makes sense that they look a little bit like the 5s and 7s, for product continuity and recognition factor. Competition, tons!! Even the new 250hp Subaru Legacy is a great car.
BUT-
let's not forget the engineering, the ride, the engine, the handling - I'm blown away by my 325 over the last 19,000kms. I can only imagine what a new 325 or 330 with the new engine will be like, and with the new technology like active steering and adaptive headlights - and a 6-speed as standard!!! I love it!! Sign me up!! I'll trade in my new 325!
Also, keep in mind that in promo stuff they only show the fanciest version of whatever it is they're trying to sell, so that "European model" has i-Drive (don't want it), and maybe NA versions will be simpler and more driver oriented. It looks to me like moving the window controls etc., might result in slightly more right leg room, I could stand that.