Tangential, but does anyone else find it difficult to assess their happiness with a given interaction beyond the ternary states of bad, meh, and great? Usually questions associated with satisfaction are given a scale of one to five, or one to ten. My responses tend to be at the ends of the spectrum or indifferent.

This slider is interesting in that I somehow identify with the state of the slider. There's an emotional feedback I feel with the state of the face on the slider. At some point, I feel that the face and my feelings match. I think this would allow me to offer a more detailed insight in to my feelings about a particular interaction, provided I was asked for the feedback immediately.