This product is a good idea to check out if there was a lot of eggs to clarify: you break them all quickly in a container then takes the yolks one by one. (If less than 4 eggs, frankly, good old technique of back and forth between the shells halves is faster).
Overall it works very well if the yolks are big. On "standard" yellow (size "M"?), It tends to carry a little white with yellow but it's still acceptable (I think it's less annoying in this sense than the other).
