I'd be interested to hear what you thought of it (I mean, if there are spoilers about what happens, please omit them, as I have no idea what that limited run series is about). Given how much we liked Downton and are looking forward to The Gilded Age if/when it's out on DVD, it would be great to have another of his to look for.
I thought it was good weekend watch. There are 6 episodes and a bonus featurette on the making of the show on the DVD.
The story first opens in 1815, the Duchess of Richmond hosts a legendary ball in Brussels. The Trenchards are invited by Edmund Bellasis, who's related to the Duchess. When word of Napoleon's arrival is delivered, the ball abruptly ends. In 1841, the Trenchards move to Belgravia, a new area for the wealthy in London. Anne Trenchard meets Edmund Bellasis's mother during afternoon tea, setting events in motion.
I enjoyed both the novel and adaptation. Edinburgh's New Town stands in for Belgravia.
Of note: Julian Fellowes visits Goodwood, the family seat of the Dukes of Richmond in the documentary "Great Houses with Julian Fellowes." The legendary 1815 ball is mentioned--Fellowes looks at the guest book.
I saved the soundtrack of the show on my YouTube list.