I am very satisfied with my visit to Ali & Nursah's place. The summary of my review can be the assurance I'll visit them again when on vacation in Istanbul again (alone or with someone else).
Some facts:
- It can be noisy 24/7 outside in the street. If it matters for you, take it into consideration. As for me, I was OK with that.
- The house is in the city center - some 40 meters away from historic Galata tower which is visible from your window. It is easy to walk to the other prominent central parts of the city - to Taksim square via Istiklal and to Eminönü, Beyazit and Sultanahmet. The nearest metro/bus stations (Şişhane) are also easy to walk to.
- The house is mostly clean and tidy. The hosts are very hospitable. They waited until late midnight until I arrived from Istanbul airport.