This is one of the stories that whenever I rewatch the show, I remember as more boring than it is. It doesn't have many stand-out moments, but there are many things that work in its favour. We have the start of the Bad Wolf plotline, the most developed character to have died at this point in the show, period costuming (which I always love). The Gelth used to scare me to death when I was younger, so I used to avoid this episode if possible. Out of the first three episodes, it's definitely the weakest in terms of action and memorability, but it's still pretty strong when you contrast it to some of the later historical episodes. Dickens actually is a key part of the plot, and is written specific to the year that the episode is yet, not just as a cameo to harken back to a different time and jump in at the last second for no reason and without any character purpose like with the Beatles in The Devil's Chord.