Its looking great, especailly compared to the checker board look it had only a few years back when they were forced to replace various sections of the old white marble
I really like the new black in the corners and once it's completed it should look as good as it did when first built in the ealry 70's but this time with easier up keep.
It's also really hard to tell that its being replaced with glass as it still maintains the white background which prevents it from looking like the rest of the boring glass buildings going up everywhere else.