Aline is a very nice host and very friendly. She is living there with her son and husband but don't be freaked out by the occasional guest. Remember you are living there with a family.
The room itself is very cozy and more suited for a couple. If you're travelling with a friend and on a budget you will manage to cope with it.
Other than that the room is very near to the city and a walk to Temple Bar takes you about 10 minutes.
If you have a car you want to try to park it at the Christ Church Garage. 24 hours cost you 30€. Not really cheap, but parking near the apartment costs way more.
If you want to explore the city, don't want to spend too much time in the apartment and you can cope with living with a family door to door this is alright for you.