From everything I've read and folks I've spoken to, overall fairly laid back/chill but curious and they have a great feeding response. Apparently some can be a bit on the shy side, like with other types of snakes though. In the baby/juvenile stages I've also heard some can nip a bit, which was the case with one of my friends and hers. But he's great for her now and mellowed out just fine.
In my case, they're both definitely laid back and outgoing and overall very pleasant. They both take frozen/thawed but the boy takes it from the from the tongs and hits it like a freight train, whereas the girl, I just put it in with her and she eats it on her own, no movement needed. The breeder I got the female from, said that's how he raises all his babies to eat because it makes it easier on him. (And I have read that in general, some can tend to be shy feeders.)