I found this very similar to the book - slow and stodgy. As per the book, I wasn't very interested in Hortense and Gilbert, but liked Michael and Queenie. It was slow going but there is a wonderful plot twist at the end which made it worthwhile. Unfortunately the preview has already given most of it away, I wish they would not do that!
I thought the book could do with editing down a lot, and the tv adaptation is the same, but at least it's nice to look at. Could have done without the narrator though.