Gieseking is best known for his Debussy. In these recordings, Gieseking plays pieces from an earlier epoch in Schumann. Most of the heavy-hitting pieces of Schumann are found. I found his playing to be very striking and original. He was definitely not simply just "going through the motions." The dynamics were accentuated quite heavily, and the tempos were also accentuated. In addition, I found that Gieseking has a very sensitive, colorful tone in Schumann that also made him famous in Debussy (in the lyrical sections). Gieseking also captures the white-hot Romanticism and emotionality of these works, displaying Schumann as one of the greatest, red-blooded poets of the Romantic period.
I hate to get into recording comparisons, but I would choose Gieseking over several other Schumann interpretations, including Rubinstein and Kissin. -- Theophilus