Adopting a Double Yellow Headed Amazon parrot. Needing information from someone who is familar with them?

We are planning on adopting a 10 year old Amazon Parrot. The previous owner had a stroke and is no longer capable of owning him. We have a 18 year old African Grey and an 8 year old Bourke's. Ive heard that amazons have completely different personalities then Greys and I was wondering if any one who has any experiences with this type of bird could chime in, give us a heads up as to whats to come. Ive read online about them for a while but are more interested in personal experiences. THANKS FOR YOUR HELP!