I honestly couldn't recommend Ian's cottage enough. Brilliant location in the centre of Dublin and close to everything you need. The actual street is nice and quiet and feels safe.
The accommodation has everything you need for a weekend or longer stay (including the nitty gritty stuff like washing up liquid).
I use airbnb regularly and I can honestly say Ian is up there with being the most organised, helpful and responsive host.
Without doubt we'd stay there again.