Had a lovely stay at Yasemin's. The building is modern and well-equipped for a long stay and has a gym in the building. While it is out of the city center, it is only 5 minutes away from the T1 metro line and bus station so it is easy to get anywhere in the city. The internet speed is also great--one of the best in Istanbul. Last but not least, Yasemin and her family were super helpful and communicative throughout my stay. I would totally visit them again!!