If that's not your goal you still shouldn't let it be a deterrent, as they also serve good food and cheap drinks. The DJ plays songs on request and has a great range of trashy pop.
Most importantly, the toilets are clean, and there's always someone interesting to smoke with outside, if that's your scene.
There are also themed nights that help make the week a bit more interesting. Try karaoke on Monday and Wednesday, every Thursday come down for the face-off between parmo and parmy, and on Thursdays you can also get into the 70's themed Boogie Nights.
Best of all, stroll down the street and get your must-have London Bridge tourist shot, on the way home via the kebab shop.