This is a new bubble tea place that just opened up in North York in December, they had a grand opening promo where there was a free drink for the first 100 customers! One Zo Tapioca also has a location downtown on Spadina.
The free promo is a regular tapioca milk tea, normally it would cost $5.49. I found the tea quite bland and the tapioca didn't have much flavour. For that price I would find it rather disappointing, I'd expect a more strong and flavourful tea.
It wasn't too crowded despite the grand opening, about 20-30 people were there a few mins before opening, and the service was rather quick and efficient.