I stayed with colleagues at Cathal's place for a 2-week work trip. We loved the backyard, and made good use of the open kitchen preparing meals together. The house is very walkable to groceries at Tesco and Dunnes Market in downtown Rathmines, as well as a nice walk to restaurants and gyms in Ranalegh.
At times it would take a bit of time to get a cab in the morning, but that was no fault of our amazing host - and no problem when we planned ahead. Would definitely stay here again for work or for fun!