I own the blu rays and really wasn't disappointed by this series. The "Study in Pink" starts out strong, although a little predictable (40 minutes in, my friend already knew who the killer is). Holmes and Watson are brilliantly transferred into the 21st century. Holmes is a veritable sociopath and one sometimes wonders where this will eventually lead him. It's a rather different problem than in the books, where drugs came into play whenever the detective was bored. Here, Sherlock only uses nicotine patches when he
needs to concentrate - that was never one of Holmes' problems in the book.
Martin Freeman makes a formidable Watson. Conan Doyle's Watson came fresh from Afghanistan - it's sad to see that his modern counterpart can come from the same country as a soldier. Watson, mostly the voice of reason in Doyle's work, starts out in almost the same role. However his crackpot potential becomes very aware in the first movie. He and Holmes form a dangerous couple in the BBC series.
There was some discussion among my friends as to how Holmes' deductions play out. It's been quite some years since I read the books (I was the greatest fan when I was 15), but his conclusions based on almost nothing were always ludicrously far-fetched and the series continues that tradition very nicely.
My point of critique was mainly with the last episode, "the Great Game". I'm not familiar with the bulk of Moffat's work, having only seen some key episodes of Doctor Who, but it seems to me that he sometimes loses his instinct when a story has enough pizzazz or what have you. This third TV movie was completely overdone, started out as a mildly enjoyable case stakkato and ended up as a bad spy movie parody which desperately tried to have the most interesting/eccentric bad guy in the history of moving pictures. Moffat kills his good basic idea and the entire narrative by piling up his finale moment into an insane heap of nonsense that would undoubtedly topple if it wasn't for those equally insane amounts of glue.