Location is spot on exactly where you want to be for everything touristy, monuments, etc. lots of rooftop restaurants all around. The area is very safe. The bedrooms are gloriously large, quite a bit bigger than the average hotel or AirBnB which is hard to find in the old Istanbul area and decorated very nicely in traditional ottoman style. Tram stations are nearby for you to get to Taksim or where the bosphorous tours take place.
There is no elevator so just be aware if you’re a weak person like me lol but I had my husband to help. It’s about a 1h drive from IST airport and Barbaros will hook you up with a transfer if you ask him.
His communication is excellent, I gave him about 2 hours notice (mom brain lol) that I had a baby and by the time I got there he had a full cot with a nice mattress and linens as well as a high chair ready for him. Communication through WhatsApp is best so if you don’t have that already, get it BEFORE leaving your home country if you don’t intend on getting a Turkish SIM card.
There are air conditioning devices in both bedrooms which you will definitely need if you’re there in the summer (I’ve been in Istanbul in every season so I can attest to this).
Everything else was nice and clean and it was evident they had just vacuumed prior to our arrival. We had a very enjoyable stay and would stay there again :)