Welcome to the family.. It's good to have you and thanks for joining..
First things first.. African Greys are the most sort after parrots there are.. The African Grey wins every "best bird" poll ever done.. The Grey is the most intelligent of all parrots..
All thing being equal, I would much prefer a Grey over say an Amazon.. and I have had a Yellow Nape.. Greys need to be properly socialized.. Yes.. but once that's done you will have no problem with them. My boy..Ceasar is friendly with everyone in the family. Will go to anyone that comes in the house.. after a few minutes or course.. Don't scream, act bad, nasty or anything like that.. He is the best pet I have ever had... Just an absolute sweetheart.. I have NEVER once been bitten by him....
So that being said.. I think some of the negativity is from Jealousy.
I am sure some of your family members here will chime in on this subject.. Don't worry, you purchased the best friend you will ever have..