TL;DR: Yasmin and Colon are your perfect AirBnb hosts. The place is nice, clean, comfy, very close to Christ Church Cathedral and Temple Bar, and just off river Liffey.
There's a LUAS station (7 minutes), a Dublin bus stop (6 minutes), and DART stop (20 minutes) within walking distance.
If the apartment is available, and you don't mind climbing a few stairs, go for it! I highly recommend it.

It is hard to believe that Yas and Colin were renting their apartment for the first time, because they were great and we really enjoyed staying at their place.

When my co-worked and I first arrived at their apartment, Colin welcomed us and gave us a short overview of the city, the apartment, the nearby grocery shops etc. This was super helpful.

Both of them were also super responsive about all the other questions/concerns we had about the apartment, such as accessing parking space, WiFi setup and range extension, etc.

The apartment was almost completely stocked with some quick eatables, to full silverware and cooking utensils.
There's a washer+dryer in the unit so you can save laundry money.
There's plenty of blankets and towels for your use.

They were also kind enough to arrange passes for the Guinness Storehouse for us, which we really appreciated. (This may not happen every time so don't please count it as part of the renting.)

Overall, we had an outstanding experience at their place. I know where I'll be staying the next time I am in Dublin.