my grey - so far has been super easy. He hangs out on his perch, hangs out with us. My too (umbrella) is a handful! my goodness! she's EVERYWHERE and anywhere. she does not like to hang out on a perch (we have a java wood table top perch for her) and she hardly sits on it. she's between chairs, on the floor, on the baby gate, getting into the blinds, the wood, walking everywhere, trying to bite our dog, Rocky on the leg...climbing on us, climbing on the couch, running around with her crest up...phew, i'm tired typing it all out! lol She does get loud, but i put her for a time out when she's loud. There is no reason for it, so I don't put up with it.
heaven forbid when she starts flying. i'll get my energy out then!