JWN Sullivan, in his 1927 book Beethoven: His Spiritual Development, said the last quartets express a "higher degree of consciousness, probably, than is manifested anywhere else in art."
And the Takács is one of my favorite ensembles. Their large sound, beautiful timbres, and natural artistry stand out for me. I was floored many years ago when I heard them on the radio, performing Haydn's Op. 76 Quartet No. 1. I'll never forget it.