I absolutely recommend to stay at William's when you visit Killarney. The house is located in a quiet area but also close (10 min walk) to the town centre. The rooms are very clean with a modern interior, and so is the large bathroom which is shared with the other guests. In addition, the breakfast is very good and William always pays attention that everything is replenished. But the most important reason why I urge you to stay at this place is the host himself: William is so nice and helpful! Although the house was pretty full during my stay, he managed to give me a few minutes of his time everyday providing very useful tips that you won't find in any guide. It was a very pleasent experience and it certainly improved my trip to Ireland!