The place is cozy for two people, and I absolutely love the location! It is a walking distance to most attractions such as Hagia Sophia, Topkapi Palace and Grand Bazaar (for fit people).
The only issue we had was the spoiled lights at the corridor outside our apartment, however, we informed Yakup in the morning and it was fix before we reached back home! Hence, I have no issues communicating with Yakup with regards to any enquiries.
The downside is that it is located at the 4th floor, and there was no lift. Additionally, there is a steep hill to climb in order to get to the train station. However, this is an issue for most areas in Istanbul and Yakup made it clear to us.
The seagulls can be quite noisy, however, it does not really bother me and my husband as we toured Istanbul the whole day, that we just soak ourselves in the jacuzzi and fell onto a deep sleep at night! Might be a different story for light sleepers though.
Overall, an enjoyable and pleasant stay during my 5 days visit in Istanbul!