The only thing that I can say is that our experience was perfect in every way. We didn't get to meet Kalliopi, but we talked on the phone a couple of times. The flat is spacious and has very high quality fittings that Kalliopi understandably wants to look after. We loved the terrace and the comfortable living room. It is in a nice, quiet neighbourhood a comfortable walking distance from all of the main sights in the centre of Athens - there are a couple of good restaurants very close by and the shops are handy.