I guess one thing you should realize that looking at current state of medicine in USA, you will never find an ideal profession. the most unsatisfied physicians are neurosurgeons.So, Every field wether it's psych or non psych have their pros and cons.these days Physicians do not enjoy the level of autonomy and gratitude which they had in past. So choosing a speciality on the basis of interest in extremely important. these days there is so much collateral administrative mess(HMO,buerocracy) ,that if you dont like what you do , you will be a miserable person ,regardless of speciality.
Every psychiatrist will have thier own pros and cons. If i tell you my cons someone might not agree with it. So it's all relative to individual perceptions and experiences.