"A perplexing issue. The performance has class ... The Vienna Philharmonic play this score with greater naturalness and virtuosity ... The singing is mostly terrific ... Denoke has these notes and the technique and breathing to deliver them. Her men are strong ... The Swiss director ... follow a similar path [as in Tristan und Isolde, Bayreuth 2005], but less surely ... Much of the result though will please, rather bizarrely, those who like "straight", non-interventionist stagings".