The campus is a totally safe space. Unfortunately Seaton Park, which is often used as a shortcut to/from campus and university accommodation is not (this mostly applies to when it's dark, during the day it is a perfectly safe place). There are efforts being made currently to change this however.
Everything at university has been great save for my experience as an international student in certain respects. For example, there was not a lot of support when I had to go abroad as a part of my degree (visa papers and everything was up to me and they had no advice on the matter). In general though I have been pleased with the university.
The campus is beautiful, the student body is very international, the classes are enjoyable an the student to teacher ratio is good. In addition, the societies and club sports are amazing and make the university.