Communication with Taylan was great - he was quick to respond to any message and was accommodating when we amended the number of people staying in the apartment.
The apartment was really clean and tidy and is really tastefully decorated; we get the sense that this isn't Taylan's home - it's an Air BnB property, which was fine for us, but useful to be aware of if you are looking for a more "lived in" feel. It's a stylish place and the roof terrace is very nice.
The apartment is on the 7th floor and there is no lift, so you need to be fit in order to do the stairs!
The only downside for us was the location: it was very close to Istiklal St, which is great, but you have to cross the Tarbalasi Blv to reach the apartment... as we crossed this road the neighborhood definitely became more dilapidated. If I was alone I don't think I would have felt super safe as a young, single woman walking at dark. Overall our stay was good and Taylan is a good host.