Apartment was very clean and Ibrahim was extremely communicative and helpful both before and during our stay. He knew we had an early flight and left us some breakfast foods so we'd have something to eat when we arrived which was incredibly thoughtful of him. He even gave us some great restaurant recommendations and helped bring up our luggage to the apartment and he even arranged for a large taxi for our airport ride back.
The apartment is located very close to Galata tower. You can type in "Dukkan Galata" on your GPS to easily find the apartment. There is a decent amount of uphill walking to get to the apartment so be aware of that. The bidet in the bathroom could've worked a little better but not a big deal.
Overall, we had a wonderful stay and I would highly recommend Ibrahim and his place.