We agree with most of the information provided in reviews contained in this forum but with less enthusiasm. I will add some personal thoughts.
The itinerary was fine but after seeing bluefooted boobies, sally lightfoot crabs, sealions, marine iguanas, frigate birds, lava lizards, little birds, for two days they all became somewhat old after that.
The contracted guides were excellent but Carlos and Marvin really stood out. The zodiac drivers had good skills.