UCL Mathematical Computation application

Hello, I have just submitted my UCAS application for Computer Science. I've applied to Cambridge, Imperial, Edinburgh and UCL (still undecided about the last option) but I've gone for Mathematical Computation at UCL since I liked this course a lot more than their Computer Science course. There's not much information available online for this course, how competitive is it? And how long does UCL take to make offers to those that submit them early (like around this time)?
Any answers would be much appreciated!