Our guineas just started laying last weekend, so this morning we finally had accumulated 6 eggs (from 3 hens) and did the taste test. Wow, they are good! The yolks are as big as a chicken egg, so there's a lot less white, and the yolks are even more orange than our free-range chickens are (could be that the chickens still eat more prepared feed but the guineas roam a lot more.) They are definitely harder to crack - they have thicker membranes as well as a thicker shell. The taste is pretty much the same, just more intense than a chicken egg. All in all very satisfying. Now if we can just get them to stay in the yard...