Hey! I recieved an offer for Animation at Hertfordshire in 2014 and from my experience I thought it was so nice there. The 3D Computer Animation, Modelling and Visual Effects looked amazing quality! It is definitely one of the best Universities for if you want to do this.
Have you been to an open day? I went to two of the open days and both times they were really nice, easy to approach if you had questions, and gave a very thorough lecture about what the course involved. At my interview everyone was really friendly too, they put on a movie in the room while people were waiting to be called up, and you could bring your parents or family/support members to wait for you and see the place.
I can't think of anywhere in the UK that had better quality 3D Animation and Visual Effects, except to have a look at Bournemouth University which is meant to be in the top. I can't tell you as much about this one because I didn't go to see it, but I think Herts and BU are meant to be two of the best in the UK for 3D Animation. Bournemouth Uni has a few different Animation courses just as Hertfordshire does, so have a look if you haven't already.
https://www1.bournemouth.ac.uk/search/animation?type=course&vocab31=706I was quite shocked at some showreels/films from other Universities that weren't even close to being that good, you can tell a lot by looking at the films, designs, showreels, etc.
Hertfordshire have a forum where some students post their work and stuff.
You can make an account there and ask about the course or ask for advice on your portfolio if you want to.
http://www.3dhit.co.uk/You can also see on this that the top poster there is someone called Moid, who is also on this forum, and he is really friendly if you ever need any advice on your portfolio or want to ask about the course. I am sure you could also call up or email the course directly too.
http://www.thestudentroom.co.uk/member.php?u=337502The only thing I didn't like that much about the University (and it was nothing to do with the course), but it was the actual location of the Uni. Having said that, everyone has different preferences. I have read some people complaining about the town and the nightlife, but personally I am not someone who is interested in partying/nightlife so I doubt those aspects would have bothered me. It depends what you want out of the Uni and what makes you comfortable/happy I guess. So find out if it would be a good place for you and what it's like for people doing your course, but keep in mind everyone has a unique experience.
I chose another Uni more suited to what I personally wanted in the end, but I still think Hertfordshire looked amazing.
Hope this helped, sorry if I wrote a bit much haha, and hopefully someone actually doing the course at Herts might answer soon