Sounds good but I'm wondering, are there minimum grade requirements for applicants?
I'm not sure. according to the UNIQ website it says:
Did you perform well in your GCSE’s, getting more A* grades than many other people in your school?
which suggests that they require several A*s, or at least relative to others in your school...however there's no harm in applying, and GCSE grades aren't the only criteria on which they base their decision on.