When I was a student, I visited The Fiddler quite regularly, and I always found it to be a nice place. However, I do not go there as much as I used to anymore. As a student, it is a nice bar, because it has an international environment, so it is a good spot to go to with people from different countries, but it is also nice if you are not a student (anymore). The interior is quite dark, but that does fit the vibe.
It is specialized in beer and offers a lot of different types of beer. If you are looking for something special or if you want to try a new beer, this is definitely your spot. They have almost 200 kinds of different beers, but they also offer options for individuals who do not want to drink beer. There are televisions to watch sports and they organize events, like pub quizzes, so it is a good spot to hang around with friends and have a nice evening.