John and Emma have probably one of the nicest Airbnb’s I stayed in during my UK trip. Clean, comfortable, reasonably priced and within a 30 minute walk to downtown Dublin, or a 10 minute cab. Ubers work well in the area, FYI.
It should be noted that this is their beautiful home as well- this isn’t the place to crash if you’re getting the Dublin experience via lots of alcohol or a stag crash pad. If you’re visiting Dublin in a more reasonable manner, I’d say you’d be hard pressed to find a better host or home.