A side of history you never knew you wanted to hear more about! ;)
Seriously though, since the spice trade was the foundation for several trade empires, it's very interesting to hear more about how the whole thing started, how spices were used in medieval recipes, and what impact the spice trade had on various economies.
The narrator does a good job. The story itself is very well researched and easy to follow without being dumbed down. One thing I'd have liked to get a little more detail about was the way the spice trade impacted the natives of the world regions, but that's not to say it isn't mentioned at all.
On the whole this is surprisingly entertaining and a good explanation of some of the how and why Europeans made their way around the world.