Finally finished Season 3. Now gearing up to watch the Abominable Bride episode and Season 4. I thought Season 3 was pretty good, though not great.
As much as I loved the show, I’m glad it ended when it did. The quality dipped pretty substantially after S2. I think ultimately their biggest mistake was killing off Moriarty when they did. With how famous Andrew Scott has become since the show, it would have made a good dynamic if they could have done more of a build-up to their final showdown.
I do agree but the Sign of Three in season 3 was one of my favorite episodes of the series behind A Scandal in Belgravia.