The tour was a great way to see all the sites along the river, especially the beautiful bridges, The 2 hr cruise option is slightly confusing, since it's basically staying on the boat after the hour tour is done, with the second hour going up the other part of the river.
The crew was great. It was hard to hear the recorded tour audio, though, when the captain and asst were talking, to each other or on their radio.
We recommend the tour. Great way to learn about this wonderful city.