Millennium Square itself is pretty boring to be honest. Couple of fountains and a few fairgrounds rides. We only went there in search of public toilets ... could not find them anywhere even though they were marked on the map. Eventually found the doorway tucked right behind the bumper car ride, literally inches through an almost invisible doorway... no obvious signage in the square or indeed around the underground carpark entrance where they were actually located. The streets around the Square are full of pubs and restaurants so they probably have a good vibe on a summers night. Equally poor signage too for directions on the little signposts... we were headed for Bristol Beacon for a show and walked a very long way round towards the river only to eventually see we could have cut through from directly where we had used the loos. Wouldn't make it a destination to head for.