The sameday process only applicable to applicant whose expected travel date is within 3 week. Long wait in the office but no wait in the check-in line. It is not bad since you can sit and wait. The office did ask me for the I-140 approval notice but I think I could still get my AP without it. She also asked me for the H1B. I didn't bring it with me, and she said forget it then gave me the AP for a year and multiple entries.