We stayed in Dee's lovely apartment on third floor three nights. Apartment was amazing, location was perfect, close to many attractions and on the route of Airlink Express (747). Apartment is on third floor and staircase is steep and narrow, that's good to know if you have troubles with walking, but it wasn't a problem for us.
Description and pictures of apartment were accurate. Wifi was working fine. Kitchen was well equipped, you can cook your own meals there if you want.
Dee was most wonderful host and gave us lots of useful tips about Dublin! Restaurant downstairs is also worth to visit, good service and great food!