All big parrots live a long time. I have a Yellow Nape Amazon who will be turning 46 in a few months. They are extremely intelligent animals who are used to being part of a flock. The require plenty of attention and interaction. Don’t even consider a bird if you’re looking for an "ornament’. Parrots are a big commitment!
They require big cages, so they are going to be taking up some floor space. They are messy eaters, but a dust buster can stay on top of that.
Grays in particular are notorious feather pluckers and will do so if they are lonely, bored, nervous, or unhappy. The feather plucking isn’t just cosmetic, they can open wounds and get infections. My brother rescued an abused Gray, and though he’s relatively healthy, he always looks like he just fell out of the clothes dryer. The parrot, too.
Parrots can be extremely affectionate and will tend to bond to one person over another, but this does not have to be the rule. With work, the bird will be accepting of several people (but he may still have a favorite). Keep in mind, parrots are not domesticated animals, they are wild animals that people bring in their houses. Their behavior may seem odd or destructive, but there’s usually an instinctive reason why they’re doing what they do, and you have to work with them to correct their behavior (provide a bunch of chew toys!).
Cleo (my Amazon) goes to a bird-vet twice a year, and the bill is generally seventy-five bucks or so, which I understand is cheap compared to dogs or cats. Overheated teflon can kill a bird quickly (it releases a gas, PTFE I think?), as can other harsh aerosols (oven cleaner, carpet fresh, etc.). Also, avocado, apple seeds, and a few other foods are strictly off limits.
And FYI: That wickedly pointed upper beak that looks so scary isn’t the one that does the damage, it’s the lower beak, shaped like a sharpened spoon that does the dirty work. If I had a nickel for every crescent shaped wound…