I found this pretty uninspiring.

It is nice to have audios from the lesser represented actors/characters and Turlough is an interesting character.

Turlough storms off out of the TARDIS after a dissagreement with the Doctor and Tegan. He finds they've arrived in the later days of the Wild West, and runs into a freakshow, though the 'freaks' are aliens.

The fact is that while this is a perfectly reasonable story, its forgettable.

I have the feeling there could have been a great point to make, or some characterisation, since this is set just after Enlightenment, but its just a story.