We had a wonderful stay at Ayce's apartment. It's very homey and had everything we needed! The kitchen was very well-equipped and easy to cook in and Ayce very kindly prepared some snacks and wine for us! The location was fairly good - it's not near the main tourist attractions, but it's pretty convenient to get there by bus or Marmaray (subway). There's also a Migros (supermarket) nearby and several good restaurants. The apartment itself is large and spacious and nicely organized and decorated, with a convenient workspace. We both work remotely and had no issues with the internet. It was fast and reliable.
After many months of traveling full-time, it was also amazing to have access to a dishwasher and washing machine. The only thing that would have been nice to have was air conditioning - it wasn't too bad as we were there in May, but I imagine it gets very hot in the summer months. Overall, this was a very comfortable and pleasant stay! We would definitely book Ayce's place again if we ever find ourselves in Istanbul.