All the reception staff were very pleasant, the main front door is security entry and visible by the 24 hr reception desk. The area off Ballsbridge seems a very affluent and safe place to be. Bus links to town are frequent, though if you prefer a walk its a 35 min straight route, just take a right outside apartment gates. The Air coach bus stop is directly outside the Airport Terminal and stops 50 to 100 yards from the apartments opposite the RDS which is where you ask the driver to drop you. (Step off the bus turn right and continue walking in the direction the bus was going. You will see a bus shelter and that is directly outside the gate).
The apartment itself was clean and comfortable with a great shower. Tea/ coffee available at reception and there is also a communal lounge area. The gym (24hr unmanned) in basement had 1 concept two rower, 2 life fitness treadmills 2 LF bikes and 1 LF cross trainer, some mats and the weight resistance station was a single multi purpose cable pulley system with integrated chinning bar (watch your head doing chin ups as ceiling is a tad low!) all equipment was in good working well maintained and clean/ smoothly operating. The gym was never busy during my six week stay and mostly I was the only one using it. There is a gym about a 5 mins walk away called Energie ( right out of apartment, right at lights and right just before convenience store through gates and on right tucked away). This has a lot more free weights and I think anyone can use it for 15 euros a day though it is not linked to the apartments in any way. There is also a chain of no contract gyms called FLYEfit which are budget prices, check internet for locations and T&c's.
There is a mix of restaurants in area within 5 min walk, a Marco Pierre White restaurant in Donnybrook (The Cottage Garden) which is short cab ride but walkable. There is a lovely large Deli in Donnybrook (right out of apartment to lights, tun left keeping Herbert Park on your left, keep walking to the traffic lights, turn left and it is directly across the road in parade of shops).
The village of Sandymount looked lovely with a few restaurants and pub, I walked there but I do like to walk.
If I go back to Dublin I would stay here again and it is exactly as described. My apartment was 115 L shaped studio with bathroom off it, couple of vellux windows over kitchen area, small round dining table with two chairs, but conveniently had a tilt and turn door so you could step outside to assess weather when deciding what to wear or easily nip out if you are a smoker!