my stay at asli's place was great; the apartment is really cosy and beautiful, it has everything you may need and asli herself is super friendly and easy to communicate with. the location of the apartment is perfect, it's only a few minutes walking to istiklal and taksim, tophane and karaköy are also near. this means that transportation is super close and if you feel like it, you can also easily just walk to some of istanbul's most famous sights, for example dolmabahçe sarayı is only a 20-30 min walk away. the area is super easy to navigate, especially if it's your first time visiting, and there are so many different markets, bakeries, cafes and restaurants all around.
all in all, i would definitely recommend asli's place to all future istanbul visitors :)