As a point of interest for our readers this was the titular church of one Cardinal Karol Wojtyla in the past -- the future Pope John Paul II.
The altar and schola cantorum exhibit beautiful cosmatesque work whose origins are unknown. There is some speculation that they might have originally come from the Lateran archbasilica under the aegeis of Cardinal Baronius but this is purely speculation. Whatever the case it is beautiful and compelling work that adds a very Roman and Romanesque touch to a church that was built during the counter-reformation period. In that regard it is rather distinctive to other churches from this period, but certainly reflective of the Roman and antiquarian interests of Cardinal Baronius.
A very fine Roman church located off the beaten path -- at least the contemporary Roman one that is, if not the ancient Appian one.