Courts in Pennsylvania are most concerned with the best interests of the child anytime they are considering custody. This 'best interests' standard also applies in those cases where a grandparent is attempting to gain some kind of custody of their grandchildren.
Invariably, when a custody matter has to be heard by the court, at least one party is going to be unhappy with the outcome. Generally speaking, if one disagrees with a court order, the method by which to redress the complaints is to ask the court to reconsider the order, or to take an appeal of the order. If one fails to do either of these within a specified period of time after the order is entered, then one loses the ability to raise his or her complaints with the order.