There are many people in China in Hull. You have been staying in the circle of China people. There is really little difference. I think the teaching is not bad. Part of the reason for the decline in school rankings is that the reference standards of British rankings have changed. I didn't refer to the employment rate after graduation before. Later, hull was added. Because there were many domestic students at that time, they could not be counted after returning to China, so they were left behind. Learning this kind of thing is still on your own.
I don't know about Dundee, but the Scots have a strong accent and it's a bit difficult to communicate. If you are familiar with the environment, a month or so is enough. Four months is too long.
Personally, I prefer to look at the rankings of the selected majors, mainly depending on how you choose.