They are messy, so be prepared to wash the whole cage and surrounding area more often. They should never be clipped. It cripples them. They really need a nice large flight, or a lot of time out of their LARGE cage to fly.
They need FRESH fruit. Either remove and replace it often, or give a smaller amount and feed more when you get home{as long as it's not past dark}
The fruits must be specific types. I can list or link you to where they are listed. On occasion a snip of greens or cooked sweet potato, carrot, is ok. You cannot just fill up a big bowl of fruit and go away for a couple days. They need someone to be there daily to care for them.
They must have low iron pellets only.
I give Mazuri low iron pellets for softbills
Do not clip their nails or trim their beak. They have a much softer foot, and bleed easily if you do. Give them varying sizes and types of perches. No dowels.
Make sure the eyes are clear, and they are in good feather when choosing one. Give plenty of fresh water at all times. They get sticky so will bathe in it often. Make sure there is a bowl big enough for them to get into.
They like to bang toys around. Give them plenty and change them often. Wash them often as well as the perches..and did I mention the cage/flight..it gets nasty. Change paper frequently. It gets very wet.
You need to understand hemochromatosis, aka iron storage disease. Know it well. Feed them wrong and you will make them sick and can possibly shorten their lifespan.
Other than all that, they are fun sweet, and love to get inside your clothes. They love to have beaky rubs. They love to have a hidey place to sleep.
DO NOT let them out with other birds, unless you know for a fact they get along. They can kill smaller birds and will bash them against something to kill them. I let Pico out without any of my other birds.