Alison was lovely - she met us at the apartment at the arranged time and showed us around. The apartment was clean and modern as per the description and photos and is well equipped (towels, shampoo etc all provided). The location was great and you can walk to most of the main sites within 10 mins. There are also plenty of restaurants, cafes, bars etc. nearby. There is a taxi rank just around the corner which was useful for the return trip to the airport.
The only potential downside is that the bedroom faces onto the street and it can get noisy at the weekends (although this is probably the same with most of the apartments in the centre as the streets are narrow and noise travels) - we had earplugs and were fine but could be an issue if you are a light sleeper. Overall a great apartment and good value for money - thanks Alison!