It is a very good collection of '60s SF stories. I had read the first few Amber novels and generally liked them. However, I was truly surprised to find that some of these stories are much stronger than the series for which he seems to be most remembered. The Amber series has its own charm with its twists and turns, but the writing style appears to be much lighter in tone. Maybe it was simplified for the masses or perhaps it was per a publisher's request.
The stories presented here vary from dark to humorous, yet Zelazny's intellect is clearly evident. Beyond the necessary far future imaginings typical of this era of SF, I was astonished by the numerous references to high literature and religion. I don't have the patience to write a story by story review. A few of the shortest stories didn't quite stick in my mind, but most of them are excellent. In particular, "A Rose for Ecclesiastes", "This Mortal Mountain", and "The Keys to December" stand out. Overall, this book holds its ground as one of the better SF collections that I have had the pleasure to read.