I have used this 3 times with different amounts of rice and water and it has boiled over all 3 times....huge mess. The rice comes out dry and crispy. It is not recommended for 2 servings.
I live in a high altitude location which may have something to do with it.  There are no directions for high altitude use. I'm considering returning it and buying a real rice cooker. In a nutshell...it is the worst appliance I have ever owned.