Club wise it was probably best known for Club Dog, which brought the free festival/squatter spirit indoors from the mid-1980s and became one of the first places where that scene, with its psychedelic and world music vibe, began to cross over with the emerging rave scene. In 1996 the pub briefly became the Powerhaus, part of the Mean Fiddler group, and then closed down.
My main memories of the place are of a club called The Far Side, which I went to a few times in 1994/5. It was one of those places where DJs and sound systems from the squat/free party scene played, like the Liberator DJs . I've just scanned in a couple of spacey flyers which give a feel for it -'Get over to the Far Side - revel without a pause - spinning trippy trancey techno, delightfully deep house and pleasurable progressive for your entertainment'. The flyer for September 1994 (below) also has the topical Fight the Criminal Justice Bill slogan at the bottom.
September 1994 flyer
Frankly my memories of all the places I went to at that time tend to blur a little, but I do recall some great music and searching for a bagel round Finsbury Park before getting the first train back to Brixton the next morning.
January 1995 flyer
See also London RIP (picture of Robey today from Ewan-M at Flickr)