Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing

It sounded good. The back of the case says "We now have the technology to see inside the heart of a crystal." Wow. I imagined peeling back layers of lattice work, revealing intricate structures. Want to know what it looks like? Shine a colored light on a crystal or agate, and look at in thru a magnifying glass. That's it. And set it to insipid harp music.I suppose it would be OK if it were the only video of it's kind, but you can do so much better. There are high def fractal zoom videos where you really are going into the heart of it with an explosion of color, rather than the 2 or 3 colors shining on these crystals.A video which succeeds where this one fails is "Borealis", which uses lasers shone thru crystals, and set to the music of Steve Roach.Or Google "cinemandala", an AMAZING kaleidoscopic video I also purchased.