We had an amazing time at Jack's Galway Townhouse. It was in a perfect location (very walkable to the bus and train stations and all the main Galway spots), was roomy and clean, and filled with amenities (sheets, fluffy towels, toiletries, laundry). It was a great rental and we would 100% stay there again. Our family of 3 really enjoyed it.
The real highlight though, was Jack's customer service. He was in touch with us before we arrived (with directions, restaurant and tour recos) and at the beginning of our stay. Everything was turn key but Jack was very available for any questions we had - even helping us book our NYE dinner.
If you are planning a trip to Galway, this really should be your choice.