Guys I have been admitted to this course at UWaterloo. Do you guys have any idea how good is this course?
It’s ranked 34 on QS for Math, which is really good.
However, you shouldn’t base your decision solely on rankings. It is important to know what is the most comfortable for you.
You should be happy that this is very good, though. 
Waterloo is very good for computer science and for math, and is a very good university in general.
I don’t know anything about financial analysis.
The FARM program is part of the faculty of math.It prepares students for careers in both finance and insurance industries. It’s a small program. If you search on the reddit for uwaterloo, you’ll find some threads.