You guys are so friendly. Thanks you all for your kind words. I'll post more about Butter II's progess.
About his temperment:
He is very bold, and very friendly toward human(especially kids) and dogs alike. If he senses anyone is coming, he'd rush to them with tail wagging rapidly and gave wet lick on the face if he got the chance. He never barks toward human, strangers or not. For dogs, he does bark sometimes if the another dog barks first if the owner does not stop his/her dog. Sometimes he barks when playing.
He is quite playful, but not hyper(some people did mention here in this forum doodles tend to be hyper). He'll go into play mode whenever he is on a large peice of grassland, in our backyard, or in our carpeted basement. He become very serious when he senses food is coming, he'd sit very nicely facing the food bowl adjust his position if necessary, and when the bowl touch ground he'll start gorge the food with little chewing.