As we were catching up with an old friend this was a great solution: two apartments with a shared entrance and two bathrooms, fridges etc. In this scenario, the rental was also excellent value.
We noticed the previous comment about noise between the rooms but that wasn't something that troubled us.
The location is very good being only a few hundred metres from Sultanahmet Square, the tram line and heaps of good restaurants.
For those with limited mobility, the stairs may be an issue but then the whole area is very hilly and "pedestrian friendly" it ain't.
We had a couple of property issues (bath plugs and accessing the safe) but these were generally attended to fairly promptly.
Pleasantly surprised to have linen changes most days which was also a very nice extra.
Overall, very happy with our stay.