An annual survey found students felt their fees and living costs were not justified by the disrupted teaching they received this academic year.
Students were particularly aggrieved by a lack of in-person teaching, found the survey of 10,000 students from the Higher Education Policy Institute.
One comment was: "Fees have not changed even considering the changes made with Covid." Others included: "Everything seems too high a price for what we are receiving" and: "Because of Covid I haven't met any of my classmates or tutor."
There were 27% who thought they had good or very good value, down from 39% last year - with the pandemic putting much teaching online and students unable to socialise on campus for much of the year.
Students felt they had missed out on learning alongside other students and talking to staff face-to-face - and more than 40% wished they had either deferred a year or taken another course or gone to another university.