Further to the above, I also liked this episode because it reminded me of the good old serials back in the day. I have always been a fan of the serials over the single 1-hour episode format, but I understand things have to be done differently these days.

But this story really had that serial feel to me, which was great. The cliffhanger was great, and I could even see where the TARDIS getting lost could have been a cliffhanger as well in the old 30-minute format of the classic serials.
This is one thing I didnt like about
Rise of the Cybermen. The TARDIS is essentially dead, seemingly beyond repair, but then instead of drawing out that desperation and suspense, the Doctor essentially resolves that dilemma in a matter of minutes. Oh no, the TARDIS is dead... Oh wait, theres one power source left so were okay!
In this episode though, they didnt resolve that right away, which adds to the drama in my opinion, and is a good thing.
Lastly, I like the whole Doom and Event Horizon themes which have been incorporated. It will be very interesting to see how things play out in
The Satan Pit. Cant wait!
So to sum up, definitely my favorite episode of the year so far, although I reserve the right to change my opinion depending how part 2 plays out this week.
