After reading the reviews for this product, I decided to purchase it.  I mainly cook rice in small batches, but I have steamed vegetables in it.  Like some other reviewers have noted, you have to rinse the rice to prevent boiling over.  I rinse the rice at least three times.  The bubbling comes to the top of the container, but does not run out.  The rice tastes great!  I highly recommend this for small batch users.