they are justifiably proud of their program! both students & faculty can get a little peeved when people think that it’s an ‘easy’ course.
Re: CompSci I am not impartial- I was part of a cross-department team with them on a SFI project and loved working with them! Some really strong, invested and imaginative profs in that dept.
Good call on the mental health part: Oxford is a fantastic experience- if it it’s a good fit for you. A lot of people (esp in the UK and Ireland, where ‘fit’ is not as much of a concept as it is in the US) think it’s about relative degrees of ‘smart’, but it really is more about fit.
I had missed that ND went need-blind this year, which improves your odds there materially.