Sercan place is close to Taksim, and easy to find. Communications between us was good, he manage to answer our inquiry within a few hours. Unfortunately during our stay, the wifi and TV was not working, and we asked if it can be fixed, but until we left, we never manage to get it. Even though its proximity to Taksim, be aware that you have to go down a steep hill to get to the flat, and the flat is also on the highest floor with winding staircase, so if you have a big bag, you might struggle. Only for the adventurest!