I once traveled with the one with the colorful burgees on it. It's the "Leu" which is Baseldytsch for lion, and it goes from Kleinbasel near the Kaserne over to the foot of the Münsterpfalz. Traveling with a reaction ferry is very smooth, silent, natural and nice. There are associations that help keep the two ferries alive. Basels citizens are very fond and proud of their ferries. All in all, it's a very nice thing :)