I had the famous brunch at Prune the other day. Since I went on a Saturday, it was not too crowded, and I got a seat (albeit at the bar) immediately.
Prune is a fairly-ordinary looking place, though not without charm. I ordered a glass of "almond milk," a substance derived from blending water with crushed almonds. It was mild and pleasant. I ordered stewed chickpeas with poached eggs for my main course. The chickpeas, made with tomatoes, were overall good but a little too vinegary for my taste. Also, I thought the portions overall a little small.
While I enjoyed brunch at Prune, it did not strike me as particularly special.