I have a white bellied caique (Louis), and I think he is awesome. I adopted him, so I didn't do any research about him before I got him, but these are the reasons why I wanted him so much once I heard about him....
1. He is a parrot, but he is one of the smallest breeds of parrot, and what that means is a smaller beak. If a macaw or african bites you, I think they can remove fingers. (I want to be better with bigger birds, but I have a long way to go. I am afraid of animals anyway and so I am proud of myself for having a pet.) My little guy has bit my husband twice, but just took off a little skin. (vet says they really get jealous and try and protecting their mate).
2. They are snuggly. They cuddle your hand. They will lay down in your hands or do tricks. They like to nuzzle your clothes and hair. They are like fun little clowns. Louis is great at bonding time and does a great job in the shower. So cute!
3. You can put them in a big cage and watch them have a lot of fun. If you have a bigger bird, they need bigger cages and even more time out of the cage than inside it. My little guy has a great big cage, but he looks like he is having a ton of fun in there. I don't have to feel bad when I am leaving for a whole day or something like that.
These are just a few of the reasons.... My friend who trained him for the first two years of his life did a great job with him too. If you have any specific questions, don't hesitate to send a private message. If I can't answer it, I'll ask my friend.
Good luck....
Elizabeth