Here is a brief video from the Kadokawa YouTube site in which Yuuki Aoi says how happy she was to get the role of Victorique in Gosick, and how overjoyed she was to get to wear the Gothic Lolita outfit designed specially for the role by Innocent World:
If it seems to you that she is speaking quickly, that's because she is. But every word is clear. That hundred-mile-an-hour clarity is one of Ao-chan's talents.
The show itself has been getting better and better, it seems to me. Ao-chan's forced laugh in episode two was a huge hit with viewers, and despite some artificiality in her performance, she really is the heart of the show.