Our interview is tomorrow at the Whirlpool bridge in Niagara Falls, US. It was the best times. There are four of us, Me, DH, DS(12) and DD (9).
You are probably on your way already but having just gone there last Saturday to renew, I can tell you that the office is very easy to find. It is right beside the Whirlpool bridge. Although you will have to enter at a different U.S. point as the Whirlpool bridge is Nexus only. We tried to make an appointment in Toronto also but there was literally nothing available.