I've been (last year) but I can't remember much about it.
All the bars around the back streets between the bridge and the squares are great. There is a bar called Luvkas which is at the bottom of the bridge by the river which is great! I wish I could remember the name of the bar with the topless pole dancers, but the beer is still only a pound a pint. Look out for it, it might be called 'Garden' or something.