I didn't like it, but none of the last three episodes have done anything for me. I half watched, because I have a lot of fandom friends, both online and in RL who were watching, and I wanted to see what was happening. And I'm still writing in the Sherlock fandom, so the ending (although I had significant problems with it) means I can happily continue to write the sort of fics I've always written.

My own feeling is that a lot of people were drawn in by the first two series and then it changed into a different sort of programme, but they stayed and were unhappy with the way it went. They might have been better to bail earlier. I have friends who enjoyed the latest series, but we look for different things. I also think there were people who were caught up in the hype more than was good for them. And maybe the writers/producers (who to an extent encourage the hype) were also sucked into thinking 'we have bigger budgets we can do more', and forgot that bigger doesn't always mean better.