I had a lovely stay in Sandymount. I was invited to a wedding in Dun Laoghaire and stayed for four nights. The apartment was perfectly situated at the DART line, so that I could conveniently travel to the wedding as well as visit Dublin. The hosts are really friendly and always up to a chat. I can only recommend the place to anyone who wants to visit Dublin, but stay in a calm area, where you can even go to the beach!