I've lived on Cork Street for the past 2 and a half years and I love it. I am a female in my 20's by the way, and on the petite side and I have never once felt unsafe. It is a bit rough about the edges but also a lot of professionals live here. As for convenience, it's a brilliant location. Lots of bus routes on the street, shops, steady flow of taxis, short walk to town, luas stop, Lidl, centra, near St. James's.