I know of no other rice cookers. My entire life.. I have only seen this one.
Too bad I never helped my mom make rice.
1 person = 1 cup of rice, 1 cup of water in the container... 1/2 cup of water outside the container in the base of the cooker.
So math geniuses... if I want to make 4 cups of rice for 4 people... that's 4 cups of rice and water with 2 cups of water on the outside. DUH!