If I had gone with a strictly 6.1 setup, I probably would have picked up another QS8. However, with the narrowness of the room, the two speakers cover the area very well and provide plenty of dispersion. In a wider room, this may not be the case, but it's perfect for my setup.

Additionally, DVD-A is encoded with direct speakers in mind. My receiver allows me to switch the surround channel to the back speakers which means I can toggle between the two for music and movies.