I love a Doctor Who script that understands that time travel screwiness aside, the thing that really works about Doctor Who is giving great actors a place to wax poetic and dramaticly chew the scenery. I felt that this episode did that nicely.

All four lead cast members rose to the occasion, and shared their energy.

I'm not sure I liked how the catch scene was done, but it's also kind of perfect. That was never going to work without NPH, and I'm not sure anything less silly could have felt right.