Very good and affordable place for both short and long term stays.
Great experience overall, I ended up staying an additional week. Thanks for hosting me!
What worked: excellent service and location at the heart of Taksim and Beyoğlu, the building is close to all sorts of public transportation (buses, metro, funicular and taxis), the room is nicely isolated from outside noise and light thanks to double windows and darkening curtains.
Some recommendations: the internet connection was spotty, and although the listing includes washer and dryer they were not available (thankfully, front desk was great and arranged a laundromat service).