I think sock has a point. Your cohort is very important.
One issue for STEM students, say, is that they can be on demanding courses with lots of early morning lectures, alongside students on much more accessible courses with much lower teaching loads. And so either distraction, we know a bright boy who failed first year exams because he tried to keep up with his partying friends, and its difficult to do that when on an A A A type course. Or frustration, as you are regularly woken up at 4.00am by flat mates who don't have 9.00am lectures.
The real joy for DS has been the amount of enrichment type activity available at his University. He had no idea when applying. So a year 1 optional lecture series had him preparing a paper with friends, but also hearing various PhD students present on their research. He now attends a similar collaborative seminar series aimed mainly at postgrads, has been able to flex his degree sufficiently to include some supervised research, as well as doing some voluntary teaching on an optional student run course aimed at those on qualitative degrees wanting to improve their understanding of statistical methods. All of which has had him challenged and improving his skill set.
Equally a friend of DDs elsewhere, is a bit shocked that some of her peers do not share her love of English Literature, and take an approach similar to that described by sock. But there too she is benefiting from impressive additional encouragement and enrichment. The same goes for a friend of DS' who is very involved in a subject-linked student society which gets strong academic support, and who plans to pursue this interest at Masters level.
I don't know how to put it, but there is a bit of an assumption that there is Oxbridge and the rest. However there are lots of other places that give good and engaged students a great education which goes beyond the syllabus and which encourages students to pursue and explore interests. Which is what tertiary education, to some extent, should be about.
Different students are looking for different things. If your institution is able to offer a good level of enrichment, you should say. It will be as important to some of your students as great sports facilities or a good night life. (Especially perhaps for the narrow Oxbridge misses and /or the late developers, who might then go on to perform in the 20% of your intake, and who presumably the group you are particularly keen to recruit.)
Interestingly DS' University sits resolutely at the bottom of student satisfaction tables. However he could not be happier. I know they have done their best to improve things that can be improved, like open a new student centre, and review term structure and exam timing, but to some extent it is about being clear about their offer, and allowing prospective students to decide whether this fits with their individual aspirations .
From what I have heard Buckingham deserves its place at the top of the student satisfaction survey - but they have a very different offer. I am pretty sure DS would not have enjoyed it. And getting back to an earlier point, I also wonder what correlation you would get between low student satisfaction and a question asking "what influence did your parents have on your subject and University choice".