We stayed at Ekaterina's apartment for three days and we found it perfect, Katy cared about everything and she's been very accurate. The place isn't far at all from the centre and the u-bahn really near the building is definetely comfortable. In the neighbourhood you can find almost everything you need, from the supermarket to nice pubs and coffees.
Eventually we did enjoyed our stay at Katy's, the apartment is really nice and has everything you need, and Katy is always reachable for any inconvenience.
Recommended!