We stayed at Johanna's place for a week and it was a pleasant stay. The room is small but very clean. The mattress was super comfortable, the heating system was on so we didn't feel cold at night. The shower was a bit of a learning curve (shower is actually the whole bathroom itself) but we eventually worked it out and also it had all the hot water we needed. Breakfast is small but nice with delicious tea every morning, Neena is a super kind lady. We happened to need the laundry service during our stay and that was perfect too, clean laundry the very day after for a cheap price. Optimal communication with the owner, Johanna answered all of our requests very quickly. The place is walking distance from all of the major attractions (Blue Mosque, Topkapi Palace, Burnt Column, Aya Sofia, Gran Bazaar) and the main tram line (T1) that we used for travelling the city. Just keep in mind that the walls are thin so you may hear some noises from other guests or the call to pray but we had no problems with it. Overall a very good stay for the price.