Pros: Amazing views from windows. Great Breeze. Large and spacious. Quiet at night. Cute and cozy location.
Cons: At the top of a hill so if one does not like exercise you will have to take public transit which takes a while.
We stayed as 4 adults in Abdullah's place. Our expectations were exceeded in every way. The location is at the top of pierre lotti hill, and the windows in the back bedroom offer a great sweeping view. The rooms themselves are well furnished, with extra towels, bedsheets, etc.. and easy to find amenities such as iron and board. The neighborhood at night is very quiet and calm, so sleeping with the gentle breeze was very enjoyable.
After previous trips with multiple different hosts in istanbul, I can say this was by far the best. There is a ferry terminal at the bottom of the hill which will take you to most of the ports near the touristic attractions within 30 minutes (galata tower district, taksim square, sultanahmet, asian side etc...). Since the apartment is at the top of the hill, coming back at the end of the day can be a bit tiresome. You can walk up the hill (15-20 minutes) or you can take the teleferik. However if you go with the latter be prepared to wait up to 1 hour sometimes or more in line (as happened to us) due to very large touristic crowds. Walking up the hill was not as tiring and sweaty as we thought. Especially since you get to the place and can shower and relax right away.
Overall, we really enjoyed this place, and definitely would book again.