Hi
Killester is a great area. The are that you are looking at is a great location, middlethird/abbeyfield. You have primary schools for both boys and girls (St Brigids) within walking distance and also secondary schools. You have local shops within walking distance too,either killester village or down the other end where the Malahide Road roundabout. Also you have the dart and bus routes on both the Howth Road and Malahide Road. Couldnt really fault the area. If you are looking in Abbeyfield there is great potential on the bungalow style houses. Been in house there that has extended in the garden (has huge garden) and gone into the attic. Fantastic house now.
Best of luck with what you decide.