Size: They only come in one size, in sets of two.
Make sure to...coat the cups with nonstick spray or rub some oil inside so the eggs release easily.
But don't...try to grip the edges with a potholder to remove them from the pot; the pods are too small. The best way we've found is to slide a chopstick through two of the three holes (which are meant to keep the pod in place when you put it in the top rack of your dishwasher) and lift.
Try this recipe: Poached Eggs with Matcha Sea Salt
6 mistakes that a busy cook makes