I strongly recommend Juracy's place. He had it cleaned right before check-in (the cleaning lady was just leaving), so it was in great shape. He gave me a map and extensive travel suggestions. He left chocolates and toiletries in the room and told me I was free to use pretty much anything. He's super responsive to messages.
The place itself is about 10 minutes from where Dublin starts to get interesting and about 20 minutes from the heart of Dublin's night life. There's a grocery store and some coffee shops and restaurants within a few blocks of his flat. It's also worth noting that, between cars and drunken revelers, Dublin can be a fairly noisy city, so there's some value in staying a bit away from the center.
I would gladly stay with Juracy again and would recommend him to anyone who wants a comfortable place to stay just outside the heart of Dublin.