Ok, I should also share the experience -
Our (wife and me) appt was at 10:20 AM. We arrived at around 9:50 AM. Very few people were in the waiting room)less than 10. We were called immediately and together - by two IOs. I was interviewed by a young fellow very courteous and polite. We went through the regular stuff (any overseas travel since application, any run ins with the law etc.). I said no, no no... etc (except for the overseas travel bit - had gone to India for 12 days). He cracked a joke about someone coming in earlier with 1200 days in home country in the last 5 years!!! Anyway, things moved quickly, he asked 6 questions (First President, Two National holidays, War between the North and South, What does it mean to be a Citizen and cant remember the last two

). And then the English test (who lives in the White House.. ).
I then showed him our Yellow letter and my traffic ticket documentation. He said, that was just a process that automatically kicks in when you say yes to the "citation" section, but its meant for more serious stuff (jail time etc.), though he asked me whether he can keep my traffic tickets stuff in my file (about 3 inch thick <gulp>!!) - I said sure, as long as I dont need them .. he said, no problems, if its in the file - its good.
Then he said all set - Congratulations, you pass! and there is a Oath Ceremony today at 3:15 - I said, Yes!!. (other small details, he asked me whether I would like another photo on my Cert - I said yes, he even said, would the wife want to do the same and he offered to walk over to the other office to hand over new photos to the wife)...
We went back at 3 PM - extremely polite folks again, there was this MC of sorts.. who did a great job of putting us at ease and made us take the oath.. very moving experience. ..
We were out at 4 PM....
Applying for my passport tomorrow and Saturday for the family....