We had our interviews at YYZ on Tuesday in between our CDG-YYZ and YYZ-YQR flights. We arrived at the office an hour ahead of our interview (I scheduled conservatively given our travel plans that day) but they saw us within five minutes of arriving. Ten minutes, verifying informatoin on file, updating our photos, fingerprints, and retinal scans, and a brief discussion of some of the perils to avoid and we were on our way. It couldn't have been a lot easier. 90 minutes later I got an email advising the renewals were approved.