Advance warning: This tree is poisonous! Don't eat it yourself, and keep pets and livestock away from its seeds!
With all that out of the way, how did it taste?
Unfortunately for coffee fans... pretty bad. Settlers returned to real coffee as soon as it was available.
This sounds mean, but it's a question with a really interesting answer. In short, while its dispersal methods became obsolete over time, the Kentucky Coffeetree still exists thanks to human efforts.
As mentioned in the previous section, its seeds are poisonous to modern mammals. On top of that, its seed pods are too hard for many animals to break. This is because its seeds evolved to be eaten and spread by and megafauna, which could break the hard casing of the seed pods.