I listened to it a week or two ago. (Julian sent me a message on Twitter that it was available.)
I thought it was an interesting exploration of the relationship between the Doctor and Sam, especially the value they've placed on each other and the lengths to which each will go to save the other's life. Good production values, I liked how the main guest star sounded like Michael Caine, and I continue to like Bane as the Doctor and Caroline Morahan as Sam.
Now that Bane has done a Gallifrey story (Homebound) and a Hinchcliffe-esque horror story (Creatures in the Twilight), I'd like to see him try something historical.
I have all three parts of Doctor Who: The Infinity Doctors downloaded, but I've yet to listen to it.