Katerina was an excellent host: she replied fast to all our messages before and during our stay and she tried her best to amend the shortcomings of the apartment whenever we spotted one.
Apparently, till recently, the apartment had been given to a third-party agency to run it through Airbnb and its condition has been deteriorated as compared to the listing's photos : Although some dust is expected in a downtown apartment, the floor was not that clean and we had to mop it. The same applies to the kitchen (oven, toaster were dirty). All the chairs were missing one or two screws and we had to screw them to be able to sit without falling off. The sofa bindings were, well, not bound, leaving some naked metal parts in plain sight. The bathroom needs some paint job, the shower head/water tube spills water around and the bathroom furniture is really used up. Also, adjusting the cupboards in the kitchen would be nice.
The location is ideal if you want to be in downtown Heraklion. However, be warned there may be some noise in the evening/night coming through the windows from passing cars and the live music bar across the street.
As discussed with Katerina, the apartment would gain back its full value after minor refurbishment.