Anyone use the Kiinde Kozii breastmilk/bottle warmer?

Lindsey • Mommy to 3!
I have been looking for a safe and quicker way to warm and thaw breastmilk. Does anyone use this warmer? If so what do you think? How quick is it? How effective? It says that it uses water about as warm as warm tap water...so I am skeptical that it can quickly warm a bottle from the fridge. Or thaw a frozen one.