Was watching time.gov and leapsecond.com (the comparative clocks). Counted up to 23:59:60 (well, 16:59:60 in Tucson). The GPS-UTC incremented as did the TAI-UTC. The TV didn't melt down either. No obvious Airbuses plummeting from the sky. Life be good.
Have asked local astronomers to forward problem (and lack thereof) reports to me. Will comment further when these are available. Rob Seaman National Optical Astronomy Observatory