The Success By 6® (SB6) initiative is designed to support early care and education centers in improving and sustaining quality in Pennsylvania's Keystone STARS Quality Rating and Improvement System (QRIS). The SB6 evaluation report examines implementation and outcomes. The findings have implications for SB6 continous quality improvement process and can inform the broader field of ECE quality improvement. SB6 is at a point in implementation that is ideal for reflection and evaluation. This report provides a summary of the full report. [For the full report, the technical appendix, and the program design appendix, "Improving Quality for Child Care Centers in Greater Philadelphia: An Evaluation of Success by 6®. Final Report. Publication #2016-07," see ED579959; "Improving Quality for Child Care Centers in Greater Philadelphia: An Evaluation of Success by 6®. Technical Appendix. Publication #2016-07B," see ED579961; and "Improving Quality for Child Care Centers in Greater Philadelphia: An Evaluation of Success by 6®. Program Design Appendix. Publication #2016-07C," see ED579962.]