Just got my finger printing done at the SFO ASC. My appointment was at 10:00 am. I reached there by about 9:30 am. The receptionist checks your fingerprint notice + PR card + one more ID = Drivers license in my case. She had a good look at my hands too. She then asked me if I carried a cellphone, and I dont have one yet. In case I had it, I was to turn it off. I was handed another form, in which I had to note down my name, weight etc - exactly the same information that I had filled in in the FBI column of the N-400. I was given a token number, 48. Currently 45 was being processed. There were just about 4 parties waiting. My turn came in pretty quick (< 10 minutes). I was done with the finger printing in another 5 minutes, and was out of the building by about 9:50 am.
The people were extremely courteous, except the receptionist, who was not discourteous, but not very courteous as well, unlike the rest of the staff. There were about 7 to 10 fingerprinting booths, and each was done fingerprinting in abotu 5 minutes per person.
Inspite of what the notice states; "Due to limited seating ...", there is lot of seating available. Please do take your kids/family there
At least do not worry about it, in case you have to have your family with you.
Its very convenient to get to this place by BART. Either Embarcadaro or Montgomery stations will do. Its about 10 minutes walk from these places. You can also walk to this place from the CalTrain station too, but it might take you about 35 to 45 minutes.
For people using car, I found lot of street parking available on Battery street. So if you are coming up via Sansome Street, get on Broadway and take Battery heading down.
While returning I saw the other INS building where the infopass and interviews are done. One of the entrances had 2 people waiting in line. The other entrance, had about 7 people waiting in line.
That is all the update that I have from CSC and ASC San Francisco.