We cut our trip short by two days because we didn't feel the accommodation was up to standard.
First the positives: the location is great, close to Westport, Newport and Castlebar it's a good spot for exploring North West Mayo, the kids enjoyed the slide and zipline and the garden area had a pleasant walk along a stream through woodland. Closer to the house was less pleasant as the owner uses the area for storage, including a dismantled car. Smaller kids would need to be watched closely and it doesn't look very welcoming on arrival.
On a more negative note, the accommodation is underneath the host's house. It only has windows on one side and these cannot be opened. A mechanical ventilation system is built in but we found the house quite stuffy. One bedroom has no windows at all, the other has a window but this has no opening. The only way of entering the building is the patio door beside the solid fuel stove. We felt this combined with lack of opening windows in the bedrooms constituted a fire hazard and this was the main reason we left early.