We had a very pleasant stay at the Diamond apartment. it is not a big apartment, but it was more than adequate for us as a couple. The kitchen had a good selection of kitchenware, and the rest of the apartment was well furnished.
The location is good, only 15 minutes walk to Istiksal Street and Galata, but tucked away in a quiet area.
The host, Hatice, was very responsive, communicated well and had a great deal of recommendations and suggestions of places to see and things to do in the area. I can recommend this apartment and would stay again in the future, espescially as it is not expensive.