I had a good time listening to this episode, despite my rating. Two and a half stars doesn't mean it's rubbish, no, it means it's a decent story that doesn't offer much but is still very enjoyable to listen to. The concept of the aliens is a bit cool, but the concept itself doesn't make them very interesting, I think. On the other hand, McGann is very convincing as the Doctor and I really enjoy listening to him talking.