I stayed at Yildirays place for 3 weeks in July 2020.
Positives: Yildirays place is centrally located and sparkling clean with all you need for a comfortable living except a microwave oven. The host is very service oriented and quick to reply on whatsapp. The helper guy lives very close to the apartment and shows up no matter how small the problem is. In my case the remote controls needed new batteries and there he was with new batteries!
Negatives 1: the shortest route to Taksim is a 45° steep road lasting for a walk of 7 minutes and is really not recommended for kids, elders or even grown-ups who are out of shape or who simply do not want to get sweaty when they reach the square. The other route to Taksim is more messy and involves a few minutes walk in the opposite direction, then taking the tramway for one single stop and finally a cable train to Taksim.
Negatives 2: Be very sure about your dates before you place your order because there is absolutely no flexibility on part of the host when it comes to refund due to later change of plans. This is something the host is clear about prior to the placement of order so he is not really doing anything illegal. Its only that there are hosts who are flexible even when they do not have to be. But this host is not.