My first impression of drinking from The Right Cup was that there was definitely a chemical type smell. I could determine the difference between the water and the trick played on my brain. My daughter tried it and she said the same thing.
As the first day went on, the flavor and smell started to combine and the flavor of the water really did change. I found myself sipping on water (willingly) and not out of obligation. The first day I could still smell the chemical smell of the scent used.