Correct, we did!
Husband’s interview was at 1430, but it was closer to 1500 by the time the officer called him in, and 1530 when done.
We thought we’d miss the oath ceremony, but they started it at 1600! There were a few stragglers they waited for to come down to the auditorium from the interviews. I may be wrong, but I got the impression that they do multiple oath ceremonies throughout the day.
We started our visa journey with a K-1 in 2018. We had some long waits (AOS/ROC), but the two times we’ve been for interviews at USCIS Seattle/Tukwila, they’ve been very efficient and great to deal with.
Overall we’ve been very lucky the entire time, with no RFEs or documentation issues. Our ROC took 18 months, but naturalization was just over 3 months from start to certificate. As I’ve said all along, it all comes out in the wash.