Interview was for 8:00AM on a Tuesday. We arrived at 7:20. Once inside we were handed a laminate sheet stating we were #4 in line. First window they ask you for documents then have you sit back down. About 5 minutes later they call you to a second window. Only took about 3 minutes. Asked about spouse, if we had children or were married before. Officer was a super sweet lady. Handed over a paper that said welcome to the United States and said congratulations. At 8:20 it was all over and we were ecstatic. Passport was ready for pickup in calgary on Thursday... only took two days! Leaving for the U.S. tomorrow!