Brahms Piano Quintet, Op. 34 is a classic... often relentless, at times brooding, and always a delight. I can't imagine any fan of classical music not having a copy of this piece in their collection.
If you don't have a recording of this wonderful music, I would highly recommned getting one. And, this album would be an excellent one to buy, I can find no fault in it. The music is extremely well played and recorded. Pollini is, as usual, excellent, as is the Quartteto Italiano.
I listen to this album frequently, and it has never disapointed in any way. On reflection, I believe there may only be a half dozen classical albums I listen to more than this remarkable recording of Brahms at his best!