Stunning. One of my favorite choral/orchestral works of Brahms. It's Brahms and unlike him at the same time. Probably one of many great orchestrators for his time. He could color an orchestra so much without over-utilizing too many auxiliary instruments. That takes a mental agility and attention to detail to pull off.
Were you going to use a different recording? If you were, you still could upload it. People might be interested in comparing different interpretations. This version was "performed by the Orchestre des Champs-Elysées with the Collegium Vocale Gent" and "conducted by Philippe Herreweghe."