Not working for me! I've tried to give it a fair chance, but it just falls short. Jonny Lee Miller is no Benedict Cumberbatch or Robert Downey Jr. Is it fair to judge him against two such heavyweights? Perhaps not, but it can't be avoided. I also think the casting of Lucy Liu was a mistake. Not because she's female, but because she is too high-profile. It forces them to give Watson more importance (and a larger share of the storyline) than he/she would receive based on the character.
The BBC needs to step up production and bring new, and more, episodes to the small screen.