Submitted child passport for renewal at local acceptance facility on 04/27/2018. Received status update yesterday that processing as well as printing is complete and I would receive the passport by 05/22. Able to track it on USPS today with a delivery date of 05/19/2018. I would say pretty good for regular processing; glad that I did not go for expedited.
Status on passport website still says processing, so sign up for the email alerts.