While Bungaroosh is almost exclusive to Sussex I'm nor sure you could say Brighton was known for it. Most people living in Sussex have never heard of it when I point it out.
Having lived in various parts of the UK. Some nice, some not so, after living in Brighton/Sussex for 23 years it makes many, not all but many places seem very bland indeed. I have moved about twenty mins out of Brighton. As a forty something I prefer to pop in. But I cant think of many better...
Gays, hipsters, good nights out, "The Lanes", beach.
Luckily for us locals that tends to keep the day-trippers, stags and hens contained in about four square miles and leaves the much, much nicer parts of town like the parks and nicer pubs exclusively to us.