I agree on the 'one of the best Watsons' comment, because WOW. I will admit that Jeremy Brett did a great Holmes and also played him to the OCD and mildly bipolar factor, plus he just looked the part. I think him and Downey Jr. are big contenders, in the world of Sherlockania (...I'm new at the Sherlockian thing) for visually representing him well.
I thought the plot was decent enough, as far as being original, and considering how Doyle was later in life, he might approve of it.
But yes, this was great, and I would totally see the next two. FINA and EMPT for the win and in movie form? SWEET!