The new episode was pretty damn good. Capaldi plays a much darker doctor compared to Tennent or Smith, but excellent (we'll see) nonetheless. Humor was still present at large, Strax being the main source of said humor this episode. The filming style/camera angles threw me off quite a bit, however I was able to get used to them by the episodes end.
In short, I was impressed by Capaldi's performance and the direction the show is taking, although the camera angles were a bit iffy. However, time shall tell if Capaldi can measure up to his predecessors and the name of The Doctor.