I went for an open day in Portsmouth. The place seemed relatively nice. However, the classroom was big. I mean it could fit around 200 people or so and I remember the lecturer telling me that they had 150 first year students.
I can't remember how many students were on each class, but I believe that the less amount of classmates the better as you get more attentions from the staff.
In addition you can only do a Bachelor's and to make it worse the last time that I checked (it may have changed) the course is not accredited, therefore you won't become a chartered engineer.
If it's your only option go for it, in no way am I saying that the course is terrible or that the university is bad however there are better options. And hey, at the end a degree is a degree get yourself a first class honours and the world is yours.
Anyway, are you going there this september?