My wife and I had a great stay at Mamara Guesthouse for eight days. The location is perfect, close to Sultanahmet and Aya Sofia, and just a short walk down to the Bosphorus.
The room was clean and well heated. It was the end of December, so having a warm room to come back to at the end of the day was important.
The breakfast was really delicious. The lady served it to us instead of offering buffet style because of Covid-19 restrictions, and the staff were still able to cater to our vegetarian needs. Every morning, whichever lady was on duty cooked something, whether that was pancakes or borek or omelettes, or even two of these. With bread, jam, honey, butter, cheese, olives and fruit, it made a great start to the day.
The thing that really made our stay at Mamara Guesthouse so enjoyable was the people working there. They went out of their way to help us. The people serving breakfast changed the choices every day, and made sure we were well fed before going out for the day -- for example, when one of the ladies realized my wife doesn't eat eggs, she made something different for her. The people at the front desk were great at giving directions to different places around the city, and arranging our ride out to the airport for our flight to Antalya. They also lent us guidebooks and novels from the guesthouse library.
We will definitely stay at Marmara Guesthouse again on our way out of Turkey.