I had stayed in a hotel in Old Town for 14 days, then a week in Antalya and finally 9 days in this unit to try the New Town part of Istanbul. This property was the first "AirBnB" I stayed at in Europe (I have stayed at many in North America). The unit and its building run like a hotel with a small kitchenette. Karem was extremely fast and helpful with responses. Murat at reception was also great.
If you want the nightclub and the trendy part of Istanbul, this property is great, minutes from Taqsim Square. The unit was clean and renovated 2 years ago. The unit I got at first was noisy because it faced the street. It also was smaller than I thought. But mostly because I like my window open, the front patio which is set up for smokers let the smoke up and right into my room all night. I woke up with a headache. So, the next day, I upgraded to a larger suite on the other side and had no issues after.
If you are thinking of cooking while in this property, the units are well not appointed for it. You have some very basic stuff but not enough for cooking and eating. The again, who cooks in a place like Istanbul where fantastic food is everywhere!
Because you are in the very crowded part of Istanbul with lots of clubs and night activities, if you are an early riser like me and want to get some breakfast, you will see plenty of drunks, prostitutes and rowdiness on the street nearby. But nothing that would make you feel unsafe. Istanbul's charm is its variety and colourful way of life. And this unit offers a good chance to experience it up and close. Old Town (where the historical sites are) can be reached within 30 minutes and two train rides, so not very far.
In all, a good stay and reasonable price and great staff!