Congratulations on passing the test.Just came back from my test/interview. got 18/20. Test was pretty easy, it took me less than 2 minutes to finish it. Interview went well too. The officer was really nice. He verified all the stamps on my passports and ask some general questions about work and family. He told me that I will get oath letter by email in 2 months or less.
Advice for Ottawa Residents: If you are driving to test center, plan to be there atleast 45 minutes before the actual time. It took me 30 minutes to find a parking spot. Downtown is a nightmare in morning peak hours with all the construction going on and traffic. Alternate solution, park your car in park n ride and take a bus. It's a 2 min walk from nearest bus stop.
Driving into any downtown in North America it is ill advised to drive. Park & Ride is always a better option. Or one should use a website or app like Parkopedia to look for a few parking lots before the arrival time and then set the GPS to the parking lot location.