When we arrived at Ariston the receptionist on the front desk gave us a great welcome and introduced us to a map of Athens. She then went ahead and pointed out all the highlights of our trip.
Most of the highlights were easily reachable by Metro. While Ariston is not 'centrally' located, it is conveniently right next to rail (where you can hitch a ride to and from the airport) and underground stops. We never had a problem getting where we wanted to go.
Aside from the map, one night we were also in need of a corckscrew. We had bought a necessary bottle of wine after a day of ruin excavation from the last open shop in the city centre. It wasn't until we got back to the hotel that we realised we lacked the necessary implements to get beyond the glass. Fortunately, the Ariston has a bar packed with bottle opening utensils and were more than happy enable us. They even gave us 2 wine glasses.
One downside would be that, as our room overlooked a main road, it was rather loud when the balcony window was open. We didn't open the window often though as the air conditioning made the temperature very comfortable.