The auto sensors in most sinks is usually not so good, and it might be annoying if you're trying to do wudhu and waving your arm or hand or foot underneath and nothing happens. Though I like the idea of there being taps on either side for the elbows, because sometimes it gets difficult trying to do this in a little sink and then water is splashing all over. I really don't know though. It is a brilliant idea, mashaAllah, let's see what happens after people use it.