Really loved staying at Karin's place in Dublin. The flat is in a beautifully done Georgian home in a residential neighborhood in just off the tourist tract but easily walkable to attractions in Dublin and public transit. It's also close to some of the pick-up locations for tours to other parts of Ireland. It felt nice to stay in a real neighborhood full of neighborhood shops to go to.
The studio was incredibly well-stocked and maintained - items for breakfast and a fully equipped kitchen and bathroom. It has the feel of somewhere maintained with pride rather than just an extra flat being rented out for a quick buck. Comfortable furniture and a lot of books and DVDs to enjoy when you're taking a break from touring. Really felt like a local home away from home rather than a generic lodging experience. Karin is also had great tips on what to check out and is a wealth of knowledge.
I'd definitely recommend her place to my friends visiting Dublin.