Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good but could have been so much better

The fact that I only paid about $4 for this is the only reason I'm not disappointed. This is very short, and does present a few good points by some qualified scientists. But when it ends, it feels abrupt, and you are left thinking, "That was it?" I would have appreciated a little more depth and detail, as well as more scientists in different fields. I'm not sure I'd recommend it even for the attention span challenged. As noted in another review, the host gets on your nerves and makes you want to fast forward to the real content. These two DVD's (The Privileged Planet / Unlocking the Mystery of Life 2-DVD Set) are much better. I would recommend those instead.