The Wings of The Dove is a novel that I have never yet managed to read right through- so I'm possibly not qualified to say that this is a very good dramatisation.
I liked the fact that the writing and dialogue found an idiom of it's own that didn't strive after naturalism and seemed to capture the indirect density of the original. It did have its less happy passages- the dialogue between Milly and Lord Mark, her thoughts and the internal 'electric bell' of her caution did not come together particularly well.
The acting too is superb.
Very, very funny and terrifically performed. If you don't know the play, be thrilled... and if you do know it, you'll love it all over again. I was a little concerned about the 'live' audience, but it doesn't distract at all. Brilliant.