For a story with a lot of potential, Miracle Day kind of goes out with more of a whimper than a bang.  It's fun enough.  It's good enough.  It wraps up the plot thread with enough competence.  But after 10 episodes, I definitely expected something a little more.  It feels like the big consequence of this story is Rex getting Jack's powers, but that never even seems to come up in Big Finish.  So, I don't really care much about what is going on or what is happening in this episode.  There's like one kind of memorable set piece with the crazy blood ritual and everything else felt flat and disappointing.  After all of Miracle Day my primary emotion watching this always winds up being fatigue.  Miracle Day could have been the best of Torchwood if they had just cut it down to five episodes like Children of the Earth.  They could have still done five more episodes on another story, and then we could have explored the new characters a little more.  If they had done that, Miracle Day could have been perfect.  Instead it just kind of sucks, it is full of this unnecessary bloat that feels like we are wasting time between plot developments.  I wouldn't recommend the whole season, really.  It doesn't really add much to the Torchwood experience.