Agrippa is one of the most interesting people in history, and the Octavian/Agrippa collaboration has to be one of the most successful and fruitful ever.
Agrippa was not just an amazing naval commander, he also was great at organizing as well as an architect and builder.
Unlike a lot of other partnerships where jealousy rears its head once they have achieved success (see various bands for instance), there does not seem to be rivalry or jealousy between Octavian/Augustus and Agrippa. His entire life, Agrippa was Octavian's most trusted adviser and friend (and son-in-law).