Personally I have something of a (four star)soft spot for this recording, but for a general review a warning three stars seems appropriate. This really is the most sensuous, gorgeous account of Der Rosenkavalier committed to disc. Listening to it directly after Sinopoli's DG "Elektra" (same orchestra, same hall) made me realise how much more presence the Vienna Phil have under Sinopoli. Karajan and his trusty engineer, Gunther Herrmanns, have presented us with a much more "soft focus" sound for the orchestra, more distanced.
Consequently the big highlights, (the Presentation of the Rose, the Final trio etc.) have the effect of a luxurious bath with scented oils... you'll find yourself purring with pleasure.
But, and it's a big "but", "Rosenkavalier" is a comedy and Karajan seems unwilling to accommodate the necessary high spirits of much of Acts 2 and 3. It's like wading through treacle. Even Bernstein (Sony) with the same orchestra and the same inclination to wallow still picks up the pace in the bits where we're supposed to laugh.
Solti (Decca) goes too far in the other direction for me, crackling with nervous energy at the expense of romance.
Apart from its sheer beauty, the other reason the buy this set is Kurt Moll's Baron Ochs. The ladies here are all excellent, if not especially individual in the manner of Crespin, Ludwig, Popp, Fassbaender, Jurinac, and of course Schwarzkopf to name just a few.
There's always Karajan's earlier Philharmonia set, much livelier if you can stomach Schwarzkopf's micromanagement of the words and Stich-Randall's dog-whistle Sophie... Haitink's EMI set is just DULL.
But when there are two DVDs available conducted by Carlos Kleiber, both with superb casts, it seems daft to look elsewhere. Like his father Erich before him in the great old Decca (mono) set, Carlos Kleiber is the consummate "Rosenkavalier" conductor, and if I slightly prefer the Munich version (Jones, Popp, Fassbaender), both are excellent.
Maybe a highlights disc would have been the best way to listen to this Karajan/DG recording, but, hey, it costs less than a tenner, and if you have other "Rosenkavaliers", run yourself a nice warm bath and enjoy it!