I truly enjoyed my stay at Filiz's place! The room is spacious and if you're traveling as a couple (I was solo) you'll be quite comfortable. Her kitchen is well-equipped with cookware and utensils; the bathroom is clean and the shower has great pressure and plenty of hot water. The apartment location is quite convenient, too: about a five-minute walk from the West Hampstead tube station, with plenty of grocery shopping (a Tesco Express across the street, a Marks and Spencer Simply Food across from the tube station) and restaurants nearby. Most importantly, Filiz is a joy to deal with. We had great communication and she was very accommodating, even allowing me to leave my suitcase behind after check-out so I could pick it up later in the day.
The apartment is on the third floor (which Filiz mentions in the listing) and accessible only by stairs, so something to keep in mind if you are carrying very heavy bags; personally, I had no problem. To sum up, the location and super-friendly host make this listing a fantastic option and I would definitely stay again on a future London visit.