Me and my husband stayed at Yunus' Place for one month. His place was conveniently located in a very nice neighbourhood (in our opinion, Cihangir is the best place to stay in Istanbul), close to facilities, supermarkets, restaurants and bars, but in a very calm and quiet street. The apartment was very cozy and had everything we needed - fully equiped kitchen, comfortable beds, good shower, perfect Internet connection. The big desk at the living room was great for working, which was important for us cause we were working remotely during this time.
Yunus was a great host, being very responsive and kind. We definetly recommend his place and would like to stay there again =)