Birdies-- I too had the pleasure of seeing them live. They did the John Adams quartet dedicated to them and the Beethoven C# quartet as well as a Haydn quartet. I was disappointed that they did not do one of the Shostakovich quartets instead of the Haydn. The Beethoven and Adams were wonderful. I'd probably rather get my Haydn elsewhere though. On my way out, I heard one patron remark, "That concert was an assault on the senses." She got considerable support for her comment among other patrons. St. Lawrence is not for everyone.
I think the St. Lawrence style is perfect for Shostakovich. He was a man who lived in constant fear of Stalin's whimsical brutality. A man who smoked himself to death trying to cope with this never ending stress. A man who I think found an avenue for relatively free expression in his chamber works, which did not receive the same level of scrutiny that his symphonies and operas did. St. Lawrence just gets this music right.