I have a parrot I inherited from my grandfather. That's also like having a 2 year old that never grows up - and one that can fly and has pliers attached to their face. She brings me a lot of joy but I'd never recommend them as a pet, I don't believe they belong in captivity truly and they are a LOT of work (if you keep them properly). Not to mention how expensive they are! Initial setup is outrageous and so is regular, quality vet care - and that's if you can even find a vet knowledgeable about them in your area. Certified Avian Vets are few and far between.
I had Degus in the past as well, and they were wonderful pets. I miss them sometimes, I had an amazingly close relationship with 1 of them in particular - but they were a lot of work too. They require a special diet and a special cage - just more needs than a typical cage type animal.
While it sounds exciting and fun to keep exotics, in most cases I think it's a bad idea. I don't believe they belong in captivity, especially not in private homes, and I just don't think most of them get the care they need. There are definitely exceptions to the rule, but I think most people want exotic pets for their own personal reasons (it sounds fun, they are unusual, a conversation piece, no one else I know has one, they are cool, they are interesting, I could learn a lot, etc.)... not because they want what's best for the animal. You know?