It was exactly what I needed - comfortable and simple at the same time, clean, very convenient location (the bus stop is exactly outside the house, and Phoenix Park cannot be any closer, you literally hear the horses from the zoo when you are sitting out). Dublin is 15min max with the bus, and there is Tesco and McDonalds <10min walk distance.
There are more people from all over the world staying in the house but it is so big and full of natural light that it's more relaxing than what it looks on the pictures here.
There are some very friendly people there to help you with your stay, and Paul is both a nice guy and in-control of the place, totally.
Highly recommended for those who want to be very close to city centre, love long walks or running to green parks, like staying with and meeting people from different countries (i.e. not just the host), don't need more than the basic amenities (wifi, kitchen, nice shower), and appreciate living with nice and friendly people.
I would do it all over again!