Nikon 50 f1.2 reviews?

Ever since I recently (where have I been) discovered Nikon makes a MF 50mm f1.2 lens, I've been toying with the idea of getting it. I can't find any good reviews, and I'm wondering if folks can point me to one or better yet, have personal experience with it. How does it compare with the 1.4G optically?
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