This Airbnb is actually a hotel and, of course, we knew that when we booked. It is small but clean and comfortable. Linen was changed everyday. The shower area was pristine and it was cleaned everyday. There's a substantial buffet breakfast on the upper level with a fantastic view of the Sea of Marmara on one side and the Blue Mosque on the other. It offers continental type as well as a small selection of cooked breakfast. Although the menu is pretty much the same everyday, it is hearty and more than adequate.
The Airbnb/hotel's location is ideal for those who wish to take in the tourist sights. The Blue Mosque and Hagia Sophia - a mere 7 to 10 minute walk away, Sultan Ahmed (tram stop) is 3 mins farther on, the Grand Bazaar is an additional 5 mins., etc. One can buy a Metro Card (actually it is for the Metro, Tram, bus AND ferry) for 6 L and top it up for the amount of travel that one plans to do, which is easily done at one of the many Tram Booths. With the card, each trip (short or long) is about 2:15L.
Back to the Airbnb/hotel. I have stated the positives and now for the negatives. We like a coolish room to sleep in. Naturally, the simple way to achieve this is to have the widows opened. The downside to this is the noise from the streets below - and we were on the third level. Traffic, conversations from gatherings in the streets, sea gulls and cats (and there's plenty of both) can lead to sleep-deprivation. Fortunately, it did not affect me too much but it did my wife. There is air-conditioning but when my wife inquired about it she did not receive an adequate answer as to why it could not be turned on. Having said that, I simply cannot imagine it not being available during summer and suggest that you check with Kamil, Mustafa or Mahmet - all extremely friendly and helpful staff - before you book.
One evening, arriving back after a full day of exploration, we were advised not to use the water for a couple of hours and that the mains supply would be turned back on after 23:00. Reason? A new undersea-tunnel is being constructed and the area's water supply occasionally gets affected. Or, at least, that's the information we were given. Still, it can be an inconvenience for some.
Now, would we recommend this Airbnb to others. Yes, but inquire about the air-conditioning. With it on and the double-glazed windows, noise should not be a problem.
For us, we associate Airbnb with a private home, a host or home-owner and, usually but not always, the use of a kitchen, etc. That's the spirit that we missed.