To my ear, the slow movements in the late symphonies are what set Bruckner apart. I know of no-one else that can build up layer upon layer of inexorable tension and beauty, like test cricket. If you buy this recording for the sake of the adagio, it will not disappoint. The recording quality helps too. Solo instruments gleam while orchestral tutti remain clear enough to pick out individual lines.
The other movements were less to my taste. Often Bruckner writes accents over every note in a bar or phrase. Karajan gets his strings, brass and percussion, though not the woodwind, to emphasize each one strongly and evenly. It can seem too insistent. Other recordings I've heard (Wand, Furtwangler, Jochum, Szell) find more elegant ways of shaping these passages so that the music retains a pulse and sometimes a sense of dance. Karajan is always at the slow end of the range of tempi.
I thought I had grown out of Karajan with teenage. I am probably prejudiced because I never heard him in the concert hall, whereas Wand came annually to the Proms. But for one sublime slow movement, it has been worth hearing what Karajan has to say.