This is the last of the books dealing with the Monoliths written by Clarke. Over all it is an easy and often pleasant read. However, in 250 pages there are only about 50 that actually advance the plot. There are also at least three chapters that were copied verbatim from prior Odyssey books by Clarke. The rest of the book is something of a Utopia by Clarke. Some would describe the society as rather dystopian rather than utopian, particularly given the way criminals are non-persons in 3001.
This is a fine book if you want something easily read and easily put down, so I recommend it for those traveling.