The property itself is comfortable: similar in size to a 1 bedroom flat. It was the perfect size for my wife and me. The location is very good: About 10-15 minute bus ride into the City Centre. John was very accommodating, from our arrival into Dublin at 6:30a until we left. He met us outside the complex at 630a even though the guests staying in our room were not leaving for another 2 hours. He took us to a local Starbucks where he bought us a coffee, gave us a quick local rundown, and then drove us into the City for us to start our adventure, all before checking in! He also gave us use of his Leap Bus card, which saved us probably 20 Euros for back and forth trips in and out of the city for 2 days.
Regarding the room, a few unique features (at least for us americans): the shower has a switch which is outside the bathroom/shower room and requires the switch to be turned on/off in order to turn the water on/off. So if you are going to take a shower, you ideally have a loved one you can hollar at to turn the switch off so you don't exit a running shower all soaking wet to turn off in the bedroom (getting floor in bathroom and bedroom wet).
The mattress was not very comfortable. If I would make one suggestion, it would be to update the mattresses in the rooms. But I would not downgrade my review as a result of this.
Having eye masks for sleeping was very nice since in the summer it's light until 10p or so and gets light again around 4am, and there was a skylight directly above our bed.
All in all, my wife and I would unanimously recommend this property and their hospitality. Thanks again John!!