I've had 3 good airbnb experiences already but this has been the best one. The place is located very well - public transport that will get you anywhere in Istanbul is no more tha 5 minutes away on foot. The studio is also easy to walk to if you get off the bus from the airports in taksim. That said you're in a great spot to explore the taksim chunk of istanbul on foot anyway....beyoglu, karakoy and cihangur, for example, are all just a short walk away.
The studio itself is very comfortable and clean and if you'd rather prep your own meals and so on everything is there in the kitchenette. Work at the desk, sit by the window and read, whatever works. Elevator up if you have a suitcase and main entrance is easily accessed via pin or key. Safe and well-maintained communal area. Munir himself will always get back to you if you need anything and give you tips and so on if he can help. Nice, chilled guy.