Arek has been very responsive right from the moment we contacted him till we checked out. He greeted us and welcomed us during check-in and even helped with the luggage. His commutation and response time was excellent.
What we really enjoyed was the proximity to Taksim Square and Istiklal street (7 min walk). Over time we discovered shortcuts. Funicular (underground) was closed so best option is hook right when you exit property and walk down till you get to Tophane tram line - 7 minute walk that will take you to all key places to visit. Use Rome2Rio app that helps with figuring out quickest path. Avoid cabs.
The only thing I found missing was guide to tour istanbul and other areas as well as a start up supply in the fridge for Airbnb vacationers.
Overall I will recommend and even comeback to stay there if I ever visit Istanbul again.