Psittacus are a very durable fish. Nothing like Panda's. As long as your water in not real hard and high PH all you have to do is keep the nitrates down and they are no issue at all. The Rio Negro psittacus are a little more sensitive but they are not what is commonly available.
As far as keeping sensitive CA cichlids. Panda's are a different world in my opinion. A sensitive CA is a fish that gets bloat. A sensitive SA cichlid is a fish that requires perfect water, low PH, soft water, good food. In other words everything has to be perfect. There is a reason they cost so much and that they are not available in the current market.
Don't get me wrong. They are a stunning fish and a great oppurtunity for an advanced hobbiest looking for a real challenge. But no one should fool themselves with what they are getting into.
caribemob, Rapps sold some wild stock a few years back. I have a lone male from the importation. There are still a few of them around. People that provided them with the right water and worked hard to keep them had some success. To many people foolishly bought them thinking they could dump them into any tap water and they would be fine. I believe Jeff has even still had issues with some of the F1's in the past as well. They are just extremely sensitive to any illness and do not recover well. If you start with healthy fish, provide them proper water and care you have a good chance at success with them.