Patrick's apt. is a good place to stay in Dublin. Like all AirBnB's, it has pros and cons.
Pros: It is in a good location with all major attractions and good restaurants within a ten minute walk. St. Patrick's Cathedral is literally one block away. It's also in a gated, secure building which has an elevator. The apt. is spacious and airy with modern appliances including a clothes washer (which we didn't use.) Patrick is very responsive and provides a great deal of information and brochures to visitors. He even provides a cell phone with a hot spot which you can carry around the city so you have wifi all the time. This is crucial for finding your way around Dublin and was very helpful for us.
Cons: As a previous reviewer said, the mattress and pillows need to be replaced. The location, though convenient, is near a hospital so ambulances roar by with sirens blaring often during the day. It's so loud that you can't leave the living room windows open at night. (The bedroom is in the back which is good.) The bathroom wasn't quite up to snuff in terms of cleanliness when we arrived - two used, still damp towels were on the back of the bathroom door and long hairs were on the shower walls and on the floor. Although there's an appliance to heat hot water in the kitchen, there's no way to make coffee other than instant coffee which doesn't cut it for most coffee lovers. (There's a a great little cafe called The Two Pups just 1/2 block away where you can get a latte.)
The apt. is a little difficult to find. The building is called St. Luke's Gate, 105 The Coombe. Once you find 104 The Coombe, walk towards St. Patrick's Cathedral and look for the steel gate on the right, before the intersection. Look up and you'll see St. Luke's Gate inscribed in the wall above the gate.
Overall, I would recommend Patrick's place as long as you keep the cons in mind.