I am getting a BSc in Mathematics there and enjoying is a lot. The first year was easy, but to the third year it has become really serious.Tons of support with forums, tutors, videos, great learning materials.
The course materials were excellent as were tutors, I think Mathematics has always been a priority for them.
On the third year you can choose from the variety of subjects: applied maths like fluids, optimisation, etc., pure maths, statistics related, and physics related. Very fun, but challenging.