Nothing really holds back or lets down all the promise and build-up of The Impossible Planet in The Satan Pit. We're presented with a very big and terrifying mystery in the first part and by and large, I feel The Satan Pit does a good job at introducing us proper to this extremely powerful and threatening presence. Sure, the effects get a bit dodgy with the devil but I had a great time nonetheless. Our characters are memorable enough that it feels like there were stakes in them surviving and escaping the increasingly desperate situation. Rose and the Doctor's reunion is a nice moment because it feels earned, with both characters really at their best here and pushing themselves against these impossible odds. In my opinion, these episodes hold up well and are a solid part of Doctor Who's revived history.