I'm finding the content of this series a bit disappointing, at least in the songs. I enjoy most of the tunes, but the songs tend to be a bit slushy, pop-oriented and over-orchestrated for my taste. And the overall flavour is more US than UK.
That said, I'm still glad to have a series like this on TV, and was very glad I had the TS to soothe me after the harrowing finish of the "Criminal Justice" drama.