Beautiful apartment with wonderful views over the Bosporus in a very central but quiet location. Very clean flat. My only complaints would be that the airport transfer fee charged was excessive - in particular given that I was left to wait for half an hour at the airport and then another 20 minutes in front of the apartment when I arrived. 40 Euros for that is a bit much. Use bus service Havatas instead - 10 TL (about 4 Euros) directly to and from Taksim square!
Also email communication response times could have been better from host - was caught up in middle of a riot and would have expected some help/support/advice/care from host ...