The White House is in a fantastic location right next to the national park and within walking distance to the town. My boyfriend and I spent 4 nights in Killarney and would definitely recommend staying with Paulette.
Paulette is a wonderful host with excellent local tips, she really makes you feel at home. The shared bathroom is not a problem at all and the house is absolutely spotless. We would highly recommend the Gap of Dunloe trip - walking is the best option as there's a lot of climbs for bikes! The town is lively and fun, especially on the weekends (a good time to visit) where you will find a band playing in most pubs and bars.