Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Tekkon Kinkreet

This is visually one of my favorite anime films ever. The 3d environments were beautifully created, without that typical CG look and the character animation was excellent. Excellent character design. Everything is very fluid and alive. In terms of the plot, I enjoyed it thoroughly for the first half, until the entire mood took a very dark turn and remained that way until the end. It got to the point where it wasn't enjoyable anymore. Maybe if I was expecting that to happen, I may have taken it better. Overall, a very well-made anime in all respects.