I have a 9 month old Red Bellied, in the middle of the big molt and is looking to be a female. She is really feisty, but not mean at all. She doesn't want to be held much, love head scratches, showers and treats. She is very playful and hangs upside down attacking her toys all day long. She already says 5 or 6 things and talks up a storm when I'm eating or leave the room. She becomes a little hostile around strangers or people she only sees occasionally. She will let them feed her treats and sometimes scratch her head, but she has been rather difficult to socialize.
I also have experience with a Nanday conure who is the sweetest bird ever and has never threatened to even pinch ant person (even strangers) and also a parrotlet. I feel like my red bellied is more similar to my parrotlet.
Also, I decided on a poi because of the lower noise levels. However they are NOT quiet. Mine is non-stop chatter with a few spurts of screaming. But compared to my conure, she is a mute,
To sum of that long-winded answer, I love my red-bellied. She is pure entertainment and has a very distinct personality and attitude. She also fits in nicely with my very busy schedule--I've kept my webcam on occasionally while I'm at work and she completely entertains herself--going from toy-to-toy. (Hint: get the biggest cage you can and fill it up with lots of toys and your red belly will use every square inch--mine is 32x23x30 inside (60 outside)).