We didn't know Kamil because in fact the lodgement was a regular hotel (Deniz houses) and he wasn't there. Kamil's answers while booking were quick and he offered us transport options.
The location was great, just in the center of Sultanahmet, near to the metro and several historic buildings. However, the staff wasn't friendly at all, except for Mohamed who was very nice and helpful, other staff was even rude with answers like "I don't have time to help you" or "ask someone else in the morning".
WiFi was coming and going and sometimes didn't work at all. Breakfast was ok and the terrace is small but very nice. The noise of the "bar" next door finished at midnight.