My girlfriend as a 2011 DCT 135i and I drive a 330ci ZHP. Honestly, it's a great car, but I concur with the statements made above. The fit and finish of the post-e46 generation of cars just doesn't seem there.
The 135 is wicked fast, but the steering feels a little heavier then my ZHP. On the plus side, the dash is very driver oriented and if I had to pick a newer, non-M, BMW, the 135 would be the one. Don't even get me started about the run flat tires.