The place is perfect for budget travellers. Close to the Grand Bazaar (about less than 5 min walk), Sultahnamhet (10-15 walk) and just near the tran lines.
Host was great, communicates easily and responds quickly. Available in their office most of the time as well.
My only concern was the cleanliness of the kitchen. Some utensils were not well cleaned and the induction stove is rusty. Also the toilet in our room doesnt flush all the time, we had to wait an hour or 2 for the tank to fill up.
Overall still a great place for budget travellers who spend most of the day outside and wants easy access to major sights in Istanbul