Although I have given this place a four star review I want to start by saying that the service was five star - our host Dan could not have been friendlier or more helpful. Thank you Dan!
These are sweet, very quiet cottages (one is nearer the main road so may be noisier), kept very clean and to a high standard - comfortable beds, great water pressure in the shower, well-equipped kitchen. Needed a bit more thinking through to make them completely liveable - for example, there was nowhere to hang up your towel in the bathroom, and the living room in our cottage didn't have enough comfortable seating for the number of guests that fit in the house. At time of writing, because of Covid, cooking basics are no longer provided, so bring your own salt, oil etc.
The village of Barna has everything you need in terms of supermarket, good restaurants etc. It's an easy walk into the village (less than ten minutes, though along a busy road) and you can get into the sea if you fancy a swim. About fifteen minutes in the other direction you can get out into the countryside for a lovely walk. Though it's probably easier to get around if you have a car, we found it no problem without one, as cabs are plentiful and come quickly (costs about 15-20 euros to get into Galway.)
Honestly if I could have given 4.5 stars I would as it just needs tweaking, and Dan obviously really cares about his business and his guests - any quibbles may have been dealt with by the time you read this.