The article is contradictory - we don't get enough Sherlock (3 episodes every 1.5/2 years), yet two more seasons would be too much Sherlock?

I'm so excited for this episode!  For those of you who are lucky enough to have seen HLV - is it as gripping as the Reichenbach fall?  I've really enjoyed this series, but I am a tiny, tiny bit disappointed as my favourite episodes are still ones from series 1&2. I know you don't want to reveal too much, and deep down I'm sure that I don't want to know too much (although my browsing history would suggest otherwise) but is this a thrilling one?

As a side note, when I first watched Reichenbach, I went from the semi-dignified position of sitting the edge of my seat to watching wide eyed and half hiding behind the sofa at the second half, so if it is more gripping then I don't know where that leaves me when HLV airs.