Stayed across the street at the Marriott and was very happy to see that every time we walked by on the weekend mornings there was a minimal/no wait. Stopped in early on a Sunday morning, no line, walked right in, they take credit. $10 Canadian for one cheesecake that I say easily serves 4-6 ppl. I picked up one of their original cheesecakes. I have never tried a Japanese cheesecake and was excited! I cannot speak specifically to the authenticity of the cheesecake but it was very good. Light, fluffy texture when warm and denser, creamier texture when cooled. The overall taste is a less sweet cheesecake without crust (when compared to NY Style Cheesecake). Definitely worth a try if you're in the area.
Very pleasant experience for a first time Japanese cheesecake experience.