Aine was a great host - her support team is very responsive and will answer your questions. Check in process is pretty easy, we had no problems accessing the key in the lock box. The building is very secure, you basically need to use a key to get into every door leading up to the apartment.
The apartment was described perfectly, no hidden surprises or anything like that. Very clean when we arrived, bed is very comfortable. Windows let in plenty of light in the mornings and it feels very cozy at night. Despite what other renters have said, the hot water works just fine in the shower as long as you follow the instructions Aine's team provides. We had no issues getting hot water outside of the scheduled times. You just can't take super long showers. I would say average time of our showers outside of the scheduled times were probably between 5-15 min.
There is a bus stop right next to the apartment, just down the road. Dublin Castle is walking distance right down Little Ship St. Grafton Street isn't too far, about a 15 min walk. St. Patrick's Cathedral is 5 min walk, same with Christ Church Cathedral. Temple Bar is a 10 min walk. Our favorite pub was Darkey Kelly's which is about 10 min from the place - great live music and fish & chips! The apartment is smack dab in the middle of everything so there is plenty to do and walk to.
We had a great time and Aine's place was a great spot to come back to after a long day. We want to come back again in the future and would definitely consider staying here again!