Alexis was really quick to respond to all queries relating to the apartment and sent through detailed information on staying. The apartment is in a great location, it is a really good area if you want to be at the heart of new Istanbul. Lots of good bars and restaurants nearby, as well as interesting shops. It is about 15min walk from Tophane tram station, which is then about a 10min ride up to the old town (Agya Sofya, Blue Mosque, Palace, Grand Bazzar) or you can walk it in about 50mins.
The apartment itself is really modern and well equiped, though in a historical building. Our taxi struggled to find it at first, but Alexis had provided instructions in Turkish and his Father's phone number and we found it in the end. It is a bit of a warren, but that is was makes it interesting!
Check in/out very straight foward and it was spotlessly clean.