I went to Part II on Saturday and I liked it a lot.
One problem with adapting AS is the number of characters in the book make it difficult to develop the character of most of them. They come in, flitter around Dagny or Hank like moths, and then flitter away.
I think it would have to be done as a five year TV series, like Babylon 5, to do the story justice. But for what they had to do, I found it to be fast paced and it kept my attention.