I will stick with separate sinks combined with automatic paper towel dispensers. Why? Its more hygienic. After my work converted what did we notice?
Two trashcans, one by each door of the bathroom and now people dry their hands and grab handles with the paper towel ditching it in the can at the end.
With all the concern over the flu and other contagious diseases, let alone witnessing some of my coworkers habits, I am all for a simple solution.
Besides paper towels always work.