I quite enjoyed Maisie Dobbs. In terms of a mystery it wasn't very complicated, but I really enjoyed Maisie herself and how unique she was. I haven't read of very many sleuths who rely so heavily on intuition, meditation, and being aware of the feelings of others.
The one complaint I had was that the story of her childhood was right on the edge of bad fanfiction. Violet eyes? Check. Dead mom? Check. Unusually clever and compelling young girl? Check and check.
Other than that, though (alliteration!) I liked it a lot. It felt like a hot cup of tea.