Long story short : well situated, very clean, but there were some mishaps during our stay. The hosts make sure to provide a very complete guide book so you don't have questions for them during your stay, but we did have some.
While the Airbnb was very clean and well located, there were some issues.
The washing machine mentioned in the ad is not free. You have to pay 3€ at the reception to be able to use it.
Furthermore, a guide book was provided (very complete, the hosts made sure to include all information), but it mentioned a dishwasher which is non existent.
The guide mentions the water heater, specifically stating that it will already be on when you get to the Airbnb and to not touch the settings. Well... we had a surprise cold shower the morning after we arrived as it had not been turned on before we arrived.
So... mishaps, but it's an okay Airbnb to stay in Galway at as it is both clean and well located.