A fun follow-up to Rose. Eases the new viewer into more aliens and the system of time travel within the universe. The overall plot is nothing to write home about, but it does the job it needs to. Platform Nine is an absolutely gorgeous set, and I do quite enjoy the overall design language of this episode. However, this is definitely not an episode I revisit often, as I feel that, despite taking place billions of years in the future, this is one of the most dated-feeling episodes of this series. Something with the color palette, I don't know. Overall, an enjoyable enough story, and a great second episode