Regina
I presume you mean Collins Avenue Extension which is where DCU is located. I am quite familiar with the area having grown up close by. You are correct in that it doesnt have a a village centre but thats no different from 90% of estates or roads in Dublin. You may have problems with students parking near your house… I am not sure if they have made the area disk parking for residents yet. You are near Ballymun Road and Glasnevin Avenue which is a fine area.
In terms of ameneties, Albert College is close by which is great for walks, runs, playground etc. and there is generally no trouble there. Also the Botanic Gardens is quite walkable. DCU has a very good gym too which you can join. You are quite near the Autobahn in Glasnevin which is a decent pub. Nearest shops are the EuroSpar opposite the DCU entrance on Ballymun Road or the shops on the Swords Road near the Viscount pub. The OminPark is Santry is quite close by too. Local primary school is OLV on Ballymun Road which is grand and St Aidans Boys Secondary school beside DCU. Scoil Catriona and Dominican College secondary schools for girls are close by too.
For transport, you can walk down to the bus stop at the Ballymun Raod end of DCU and get buses into town coming from Ballymun, Finglas and Glasnevin or walk to the Swords Road and get buses going into town from the airport and Swords.
Overall, I would say it’s quite a decent place to live. It is quite a busy road and may be noisy even though the houses are in a bit off the road.
I hope this helps.