It does particularly poorly with brown rice, with starchy water bubbling out of the steam vent on top and spilling onto the counter

Whether I cook one cup or more of rice, the amount of water released through the steam vent floods the outer portion of the lid (under the top handle) with messy rice water.

So just be ready for cleanup or placing paper towels over steam vent!

The steam vent's location allows liquid to condense and run down the outside of the cooker.