This is a well written, well acted new take on an old theme. So why the low score?

Well it just doesn't work for me. The whole genius of the original books was that Holmes used scientific and analytical skills to solve crimes that the conventional methods of the time could not. He was an innovator, and his eccentricity of personality was evidence of his single minded determination to use any method to achieve his solutions.

Much of Holmes' personality stems from Conan-Doyle's experience of the medicine and forensic techniques of the time. Transposition into the modern era has lost this vital aspect to some extent. Whilst Martin Freeman has nailed the down to Earth, straightforward personality of Watson, Benedict Cumberbatch is far less successful as Holmes. But once you've seen Jeremy Brett do Holmes, no other actor, even one as talented as Cumberbatch, has much chance. Brett became Holmes and Holmes became Brett.

To summarize, this is a reasonable series, but Sherlock Holmes it is not.