I watch many crime series on television - and gave this one a try. At first I wasn't sure - it's very different from your usual crime series and I thought at first I was finding it too different from my usual type. (MIdsomer, Miss Marple, Lewis etc) - however I felt like that about Murdoch Mysteries and now I wouldn't miss an episode of Murdoch Mysteries. By the time I'd seen the third episode - I was googling to see if the DVD was available.
So was the case with Miss Fisher. It's set in mid 1920s Australia - and Miss Fisher is a flamboyant, wealthy fashionable socialite who is also a 'Lady Private Detective'. It is light and fun - but has it's serious side. Miss Fisher herself is haunted by the disappearance and presumed death of her own sister when they were children together. This theme runs through the whole first series - and while it's not the sole storyline - it concludes at the end of the first series.
Miss Fisher herself is worldly - and very, VERY kind to people in distress. She has had her own share of distress. There is also a 'will-they-won't -they' dynamic between her and the Police Inspector she invariably works with - Jack Robinson - which is romantic fun.
It's NOT 'gritty' or tortured - Whitechapel it's not. But it's a very enjoyable addition to the kind of 'murder' series you'd enjoy if you like Castle and MIdsomer Murders as it was in the 'old days'.