Stayed here for 4 nights, we were greeted by Behar who was very welcoming and nice, explaining all we needed to know on a map and answering any questions we had. The place feels more like a hotel which was great, having 24/7 help, a locked vicinity and daily cleaning plus all the toiletries we needed. I had booked one of the apartments online which had different pictures than the one we stayed in but I understand Mustafa has multiple in the same building which was no issue. The neighborhood is safe and a very short walk from Istiklal street, which is a must visit. We walked to the Sultanahmet, which took about 40 minutes from the apartment but you get to cross the Galata Bridge, see all the activity by the Bosphorus, pass Galata Tower and shops/restaurants. The metro is close by, takes some getting used to but is convenient. Would recommend this place and come back for future visits to beautiful Istanbul!