I wasn't able to see Ayu or Utada because of the time difference sadly.

But I was able to watch most of the beginning of the show. I was happy when they showed Seiko Matsuda performing Akai Sweet Pea. I also remember them showing Glay a little bit.

After seeing both Ayu and Utada perform, I think they both were awesome.

I think Ayu was mostly consistent vocally, a few dips here and there but I think she did well. I think it will have a positive impact on her career and image.

She looked great too. The white dress is my favorite.
If I had to criticize something, it would be the evolution portion. I thought the violin thing was awkward as well as the random classical music breakdown/interlude. The dancers weren't really needed either, it would have been nice if Ayu was the one star of the show. The kanariya make up was also strange to me. Why was it used? Ayu always wants to ignore everything kanariya related but randomly it appears now? Not a bad thing but has me wondering.
I wish Utada could have been there in person so they could be reunited.