Kind of gimmicky and definitely over priced, but it's definitely a must visit at least once. This is the kind of place that I would take visitors to Toronto, just because the concept of being a "Lab" and having test tubes and such is a pretty unique way of serving bubble tea.
While initially there seems to be a lot of choices to mix different flavors together, realistically, not many flavors do taste well together, so that limits your choices (Apparently Durian doesn't mix well with anything!!). I think it's fun but not really worth it and doesn't top other Toronto bubble tea spots.