I love a show with good music, I mean, who doesn't. This show's music is really very good. Very catchy and always fits the moment.
The acting is incredible, especially James Spader, who, I think, will be Emmy worthy. I guess we'll see next year.
Finally, the structure. This episode was very well structured and I could easily understand all stages of the plot. Many TV shows contain very poor structuring and therefore I cannot understand the main point of the plot.
Overall: 10/10 for an intense and surprisingly good episode!