I have a pair of Shimano sandals and have considered them for extended touring. But the answer has been no and likely be the same into the future.

Sure they can be used for bathing in, but they do take time to dry, and in cold weather that can problematic.

When dining out, I prefer to be a bit more formal with enclosed shoes.

Sunburn on the feet can be an issue.

Playing in the ocean means corrosion for the cleats and the screws will likely have to be drilled out.

And I have it on good authority that the stink they take on is not very pleasant for others in the vicinity, especially in a tent.

Some love their sandals, but I am not so enamoured except for day rides like today's or weekend tours.