Was the Neolithic Revolution ultimately positive or negative for the human race?

Whether one considers the neolithic revolution positive or not depends on one's values. On the one hand, it led to the development of modern technology, which led to dramatic increases in life expectancy, far greater comfort and convenience, increased availability of adequate food and shelter in much of the world, and many other positive benefits. Without it, we would lack adequate food, safe drinking water, and cures for many diseases. Infant mortality would be much higher.
On the other hand, the same technology has given rise to global climate change, pollution, economic inequality, and weapons of mass destruction. Increased technological capacity has led to many species extinctions and the degradation of habitats. Therefore one can argue either side of the question equally well. Perhaps a definitive answer will only be possible in a few hundred years after the effects of anthropogenic changes on the planet become more obvious.