Stayed in Eminonu's apartament for four nights. We didn't see Eminonu until the last day, but his friend Maher welcomed us and helped us with our bags and gave us some advices for getting around the city. He even called us a taxi when we were leaving to the airport which was very good since the taxi drivers can easily trick you. The Galata tower is 20 min walking, The Taksim Square 20 min walking and Istikal Cadessi only 10 min. You feel that you are in the centre. Near the apartament are a lot of shops (some of them work 0/24). The neighbourhood is safe and quiet.
Eminonu's apartament is a good value for money. Nicely decorated. The bed is comfortable and you have everything that you need (hair dryer, iron,...). We didn't use the kitchen because we ate in the city centre.
I would recommend this place to everybody because the place is close to the centre and the communication with Eminonu and Maher is really good and they provide anything that you need so you feel safe.