I live in the dolphins barn area and have done for a long time now, as a single female I have never had any problems at all. The area has lots of regeneration plans, Cork Street has been revamped and there are plans for more regeneration, fatima mansions are gone now. I would suggest you walk around the area in the evening time ( with a friend if you feel unsure) and see what you think, also call in to some of the neighbours, tell them you are thinking of moving in and ask them what the street area is like for break ins, cars etc. good luck