Oh wow, well, congratulations! Uni's awesome. You're more than likely gonna love it. Got in for geography, I take it? And some personal statement that's able to apply for both of them at once haha. The extent of flexibility in mine was... medical biochemistry vs biomedical science, haha. I do the former now.
As I said in my reply, I feel RG importance is really overblown by teachers. But it is always nice and undeniably better in most cases; just how much better is debatable.