I have several one volume commentaries. This is definitely the best . This is not surprising since I expect a high standard from MacArthur. The comments as ever are incisive and expository from one of the world's top Bible teachers. His writing style is admirably consise which means that there's more to this volume than comparably sized volumes.
A word of warning though: this commentary is based on his excellent MacArthur Study Bible (they makes this clear on the book cover but that may not be obvious in this Amazon entry). Thus, if you already have his study bible, don;t bother with this.
Mind you, the notes have been updated a little bit and there are lots more maps, diagrams and such forth (over 300 have been added) so there is a bit more than the study bible.