An Easter Egger is just a chicken that should have a copy of the blue egg gene so the hens lay blue or green eggs. They might be any color or pattern, have any color of legs or ear lobes. They might be tiny bantams or as big as Jersey Giants. They might go broody, they might not. They might be aggressive, they might not. An Easter Egger is just a word for a chicken that should lay a colored egg. I say should because a lot of them don’t even do that.
Easter Eggers are not a breed. They are crosses, mixes. They do not have breed characteristics. You can’t say if they are good duals or not, go broody a lot or not, lay well or not because there are no breed characteristics. Asking about EE’s is a lot like asking the general population, what is your mutt dog like. It’s going to depend on what breeds were used to make the mutt. I feel like I’m coming across as harsh but EE really doesn’t mean much.
Where are you thinking about getting them from? A certain hatchery? Each hatchery is different. If you can find someone that got EE’s from that specific hatchery they can tell you how their EE’s performed. That’s your best bet to get your questions answered.
If the hatchery mixed in Leghorns you’ll get EE’s that lay fairly well and lay decent sized eggs, but the bodies won’t be real big as far as producing meat. If they mixed in other full-sized breeds, they’ll make better dual purpose chickens.
I’ve made my own by getting some Ameraucana project birds for the blue egg gene and mixing them with fill-sized breeds, Speckled Sussex and Black Australorps. They lay well but egg size is a bit small. I’ll work on that. By selecting larger birds as my breeders, they now make a pretty good meal. But that is just my mix. I have no idea what breeds went into your mix.