I'm no bubble tea connoisseur, but I absolutely love CoCo and definitely think it's one of the best places to get bubble tea in the GTA. I recently tried this place for the first time when the new location at Commerce Gate opened up, and man have I been missing out.
I've tried a few flavours so far, but my favourites would be the Taro Sago and the 3 Guys (Original Milk Tea with Tapioca, Grass Jelly, and Pudding). My drinks are always made fresh and the toppings consistently taste great - unlike most of the other bubble tea places I go to where the tapioca/grass jelly are sometimes a bit off. I also feel like the drinks are a bit sweeter than usual here, so I'd recommend getting less sugar.
P.S. I'm an Elite Chatime member, and it has always been my personal favourite when it comes to bubble tea. But ever since I've had CoCo Fresh Tea & Juice, things have changed... I've chosen CoCo over Chatime every time for the past month. I love it here! I wish there were seats/tables inside this location instead of just take out though.