Could not get a more central location - great for sightseeing in the town and staying closeby at night. As other reviews have pointed out, don't come expecting a quiet spot as the street noise can be a lot - but the hosts are very prepared with the white noise machine, fan and earbuds.
The other small details around the apartment such as umbrellas, toiletries and tourist info makes this spot ideal for a few days in Killarney.