Brahms is a workout. Much of his music is physically exhausting to play. It can feel over the top. It's a musical language of its own. Brahms loves to, for whatever reason, write beautiful melodies entirely in fifth position in his second cello sonata. Technique becomes secondary -- it serves the music. Pleasing to the audience, unbearably frustrating for the musician.
Frustrations aside, some days you want to eat the whole cheesecake. Today is one of those days.