I dont have a too since I knew that as a student I wouldnt have the time to devote to one but I do have a grey and I love her to bits so like the above I can answer your question with my experiences.
1- Personality traits - She's such a goofball, she's always doing something entertaining and goofy
2- Intelligence - I know she's too smart for her own good, that's for sure.
3- orneryness,ssss (lol) - only when she wants love and I want to work
4- Trainable - We've easily taught her to step up, she's already picking up no and we're starting target training
5- Screaming (very important) - she's nearly silent. The only noise she makes is her babbling
6- Lovable, cuddling etc. - she'll sit wedged against my cheek rubbing her head on me for hours. Almost TOO cuddly xD
7- Nervous (plucking, chewing) - none, hopefully it stays that way
8- Bad habits - she nibbles my ears when she wants attention, she's getting a bit too hard so we're nipping that in the bud.
9- Sleep well & quiet overnight - silent. about 9 am I hear a "peep" from the living room.
10- Good with other pets - she wants to beak at them, but no malicious behaviot