Our guide Elba was friendly and always checked in on us. The group itself had split into multiple parties / locations once we were on the boat, and she made a point to come around to each of us and provide info about what we were seeing. Note that you share the boat with other groups, so it could become crowded. We had the morning trip and had space, but the afternoon trip had a massive line and likely would not have been as comfortable.
The trip itself was interesting but not amazing. There were some good sights, but not as "nature oriented" as I was expecting. But still good to see an alternative lifestyle and culture in Argentina