Hi., It depends what your daughter needs in terms of amenities/services.
I live here in Citywest, bought a house here 15 months ago.
It is true there are few amenities here at present, but The new Cityewest shopping Cente is to open later this year. The new Luas Station will be located opposite there. I am in my 20's so schools are not on my checklist (yet), but there are schools nearby - Saggart, Rathcoole, Tallaght.
If your daughter drives to work, Citywest is fine. I work in Sandyford which takes me about 30 minutes in morning. A drive to the Citycentre would certainly be longer, but i would expect it to beat a trek from Adamstown or Cellbridge. At least you dont have the N4 to contend with.
In the short to medium term, Ithink Citywest will be far more accessible to the city than Cellbridge or Adamstown as:
(a) Had a good bus service
(b) The Tallaght Luas to City Centre is a 10 minute drive away
(c) The Luas extension to Citywest is on the way and will be within 10 minutes walking distance of any housing developent in Citywest.
True there are big plans for Adamstown, and Cellbridge is an established residential area but at the end of the day Cellbridge/Adamstown are more Kildare than Dublin! I think the train service is overhype'd as it only goes to Hueston Station.. you are still faced with getting a bus ot Luas at Hueston if you are heading into the City Centre..