The Location is perfect, you are 0.5 min walking to TOPHANE tram station from there You can go everywhere. Near to Istiklal street (the famous street of Taksim) and near to GALATA tower. Near to the karakoy bridge on the sea.
Heating system is very good, but at winter it will be cold at first few hours until the building warms up, and the apartment is very cosy, it has upstairs maybe not very comfortable for old people but its perfect for others.