Dublin was mostly walkable for me and my friend, and Olivia's place was about 30 minute bus ride to/from the airport by taking 41 or 16 which is about 2 minute walk from apartment. The neighbourhood isn't high end but it didn't feel dangerous. She doesn't live in the apartment unit but was quick to answer my messages. It was very comfortable staying at her place. It was clean and she includes many amenities which I really appreciated since I packed light, such as feminine hygiene products, hair styling tools, shampoo/conditioner, toothpaste, towels, hooks, lamps, outlet adapters, bread, milk, cereal, coffee/tea, etc.