Hi,

I'm actually a student at imperial, but undergrad. I don't know about grades, i mean even though imperial has a reputation blabla, I've always been told a 2.1 is really good, and one of the professors told me once that 2 of the lecturers here actually got a 2.2 (cos I was asking if you could carry on doing phd's n things even with a 2.2 in case I couldn't get a 2.1).
also, I really like silwood. I've been there 3 times and it is sort of removed from everything else but it's very pretty and if you like nature (as I suppose you do if you're interested in this masters) it's really a nice place to be. Especially if you have a car.
and E.J. Milner-Gulland was my dissertation supervisor in 2nd year and she is really nice.
So I think you should definately try! I'm interested in this masters myself, but I still have a year to go before I finish, so you can try it out first

wish you all the best!