From the BBC writeup:
"Deep Space 1 plunged into the heart of Comet Borrelly and has lived to tell every detail of its spine-tingling adventure," said project manager Dr Marc Rayman. "The images are even better than the impressive images of Comet Halley taken by Europe's Giotto spacecraft in 1986."
"Up to Saturday night, we had only one example of a comet's nucleus. Now, we have another one, and with it a much better understanding of comets," said Dr Don Yeomans, of the American space agency's (Nasa) Jet Propulsion Laboratory, at a press conference to unveil the images.
Dr Rayman added: "After years of nursing this aged and wounded bird along - a spacecraft not structured to explore comets, a probe that exceeded its objectives more than two years ago - to see it perform its remarkably complex and risky assignment so well was nothing short of incredible."