You still have to break it in, but not as much.
However, you will have other problems since you ordered a black one from Cube4you. Those Type Ds have new, bad screws. They make the cube lock up more and make the screws come out. Like every 5 minutes the screw will literally come out of the cube. It's a pain. To fix that problem look at this
thread, but it still won't be as good as using the old screws. Next time, get a Type D from
9spuzzles (a.k.a. Yuga DIYs). And the cube isn't great out of the box either.
Other information about Type D:
They do lock up more than other DIYs, but in my opinion, they lock up less than most Rubik's Brand storeboughts, when both cubes are new. If you replace the Type D core with an
old Type A core, the cube does lock up less, and turns better. However, it doesn't fix the problems associated with the new, bad screws.
Sorry for hearing this, but next time you buy a cube research VERY thoroughly before making your choice.