It's alright. Kept my attention for the whole hour or so nicely, which is sometimes a problem when I've got the laptop in front of me. There's not a whole lot to it though.
Two observations however:
1) It is quite annoying to see a 'doctor' die and not regenerate. Kept yelling at the screen "Damnit, he's in this movie too! You can just change! CHANGE!"
2) There are a handful of love scenes involving Colin and Nicola that make me wonder about the conversations had at the first script read-through. "What, exactly, is this, fanboy?! Did you arrange this production simply to satisfy your prurient desires re: companion copulation?! Hmm?!"