We booked a family room (two adults, 2 kids) in Rita's house for a weekend in the area, having spent the week camping in Westport. It was rather last minute and, tbh, there wasn't much available in our budget range and in the end, we were very happy that we found this house on AirBnB. The location is in countryside between Westport and Louisburgh - so your own transport is useful, and it's really quiet and peaceful for a good night's rest. It's very close (5 min or so drive) to Croagh Patrick so a good spot if you're doing that climb. Rita was accommodating for our check-in - she made contact promptly to let me know she could only be there at a certain time, then when we spoke, she gave us a couple more options and she was flexible, which made it easier for us (on a rainy day in Mayo with a 7 and 8 year old to keep entertained!).
Other reviewers have referred to the house rules for silence - I didn't find this a problem - we tried to keep our noise down and other guests were respectful of that too, so it wasn't an issue. As noted in other reviews, you can't use the kitchen to prepare your own meals - which is fair enough - so you need to have transport to get out for meals other than breakfast. It did help that we could put a few items in the fridge/freezer, as we had supplies from our camping trip.
The room was a good size given that it had a double bed and 2 singles - it had just enough space for the 4 of us, and we had a bathroom for just us, just across the hallway.
Breakfast was fine - cereals, tea/coffee, bread, butter, jams, fruit & yogurt were all available for us in the kitchen, and it was easy to help ourselves, and the kitchen was nice and clean, and a good size for us and the other guests to be in at the same time.
And, finally, Rita was a lovely host - she provided information (good recommendations of where to eat with kids) and very helpfully took our swimming towels & togs in off the clothes line in between the many rain showers whilst we were out!