Eóin (pronounced like "Owen", for you Americans) is one of the most thorough and gracious AirBnB hosts I have ever stayed with. We came on foot, which was a bit unusual, and Eóin literally would not let me hang up the phone until he had talked me through getting into the flat and he had ensured we were happy with everything and had sufficient plans and directions not only for our Galway stay, but for the trip to Dublin to follow.
As far as location, the townhouse is behind a pub, but it closes early by most country's standards and isn't terribly loud anyway. The general area around can be a bit rowdy, especially at night down by the canal, but that's Galway, and it's also one of the key features of the townhouse, it is just steps from the Latin Quarter, canals, Galway bay restaurants and the heart of the city. There's a large pub on the corner that plays trad music nightly as well.
The space itself was clean, modern, spacious, and well cared for, well furnished, usual utensils etc. No complaints and would gladly stay again.