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Title: Has not aged well
Review: When C&K came out, it was a major event because it brought together scattered information in a decent graduate introduction. But it doesn't compare well to more recent books. It is relatively slow and important points don't stand out well. It would benefit from a lot more examples. And it is much too focused on ultraproducts. The third edition does very little to update it; it just adds sections 2.4, 2.5, 3.5, 4.4 and a few pages to the Open Problems and Historical Review. Reading C&K along with Marker, Hodges, and Poizat, I felt that C&K was the only one that added nothing interesting to the others. If you really need to read about ultraproducts, Hodges has a good description.
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