The ones I am familiar with allow the fellows to take the calls and are available if the fellows/residents have a question. They divide up the duties amongst the members of the team.
The work hours are not pleasant. Often the cases go over the requested time and can range from 3-10 hours. OR schedule can be heavy, whereas the office setting is more flexible and benign.
The malpractice, yet again is setting dependent however the relative absence of Obstetrics does matter.
Its a great subspecialty for people that love surgery, especially technical aspects. It is 3 years in lenght following the OB-GYN residency so it does require a great sense of commitment. In general, out of the people I know, it has been mostly males that have gone into this subspeciality whereas the females have been more attracted to Urogyn as a subspecialty.
Its is a surgically heavy specialty, but in comparison to Gyn Onc its more benign. The cases don't approach the hours involved in Onc cases and the diagnosis/prognosis are very different as well. Gyn Onc can be emotionally draining with some sad outcomes, whereas in Urogyn it is the opposite (albeit not all the time).
I think it provides a good sub-specialty for female ob-gyns that love the technical aspect of surgery but want better hours.