I'm actually kind of surprised by how good the cathedral turned out. The interior stone was dingy and gloomy before, but now it's white and gleaming. The cleaned artworks have more "pop" to them. The whole interior is brighter and more cheerful-looking. Removing centuries worth of grime makes a difference.
The repair and renovation crews deserve a lot of applause for what they've accomplished. And the French government deserves credit for not finding a way to muck things up.
The new altar sucks, though. It's a Modernist nightmare. Its flat metal surface could pass as a griddle. When the priest was pouring oil on it, I half-expected him to start frying up some hash browns. This sort of modern ugliness--which unfortunately applies to some of the other accoutrements, too, not just the altar--is about how I expected the whole renovation to go.
But the building itself was fortunately spared that fate. It looks the best it has ever looked in my lifetime, and the workers did a fantastic job on it.
Perhaps a future generation can replace the altar and other Modernist doodads with something that's actually handsome.