It's like a big family. We all care for each other, sometimes branches of the family don't get along so great, but it's large enough that you can generally avoid those people if you don't like them, but small enough that you do know everyone.
The PDs are very responsive to feedback, within reason. They aren't going to change things every month, but if the residents identify a problem with the schedule, they brainstorm ways to fix it and trial new things. If there's a problem with the faculty, our PD goes to bat for us.
We're a stand alone children's hospital--there is always plenty of work to go around. If you don't learn best by doing, this probably isn't the place for you. In studying for boards, I've seen the vast majority of diagnoses multiple times. That said, we are supportive of each other and help when others are struggling. We don't have caps on patients on teams, but very rarely go above 6-8 patients per resident (the weekends would be the primary exception).
Everyone means something different when they ask about call schedule, so you'll have to ask more specific questions if I don't answer what you actually want to know. As it stands now, we have 9 months of inpatient time intern year; 4-5 are spent on wards, 2-3 are spent in our level 2 nursery, one is spent on level 1 nursery, and one in NICU. The remaining 3 months are outpatient general peds clinic, ED, and Developmental. You do nights on whatever team you are on for the month--there is no general night coverage for interns. If you're interested in NICU, this is a great program to train at, because we don't have fellows, so you go to all high risk deliveries and do all procedures on your patients as a resident.