Elif and his team are very professional, courteous, responsive, and welcoming! The location of this guesthouse is within 15 min walking distance to Hagia Sophia, Topkapi Palace, Blue Mosque, the Sultanahmet tram station, and so on. All the mosques are free to enter, but please prepare a head scarf for any female visitor and dress respectfully. A tip here: the queue for tickets at the Topkapi Palace could be too long, but you could get the museum pass at the nearby Istanbul Mosaic Museum and visit it first, which is included on that pass, and then go to the Topkapi Palace without waiting in line. Remember to pick up the free audio guide near the Palace entrance with ID or money as deposits. At the guesthouse, the daily free breakfast at the terrace (top floor overseeing the seas) and the included room service will be convenient if you choose so. The airport pick-up and drop-off arranged by Elif and his team is fast and reliable. There are different types of rooms. We used a triple room and the area was on the small side but enough. It is located on a side street in parallel with the main street, so it is quiet but convenient. Along that main street, there are lots of restaurants (too much hassle but you can ignore them), shops, small grocery stores (easy to get bottled water, yogurt, juice, fruits, etc. at very reasonable prices), and currency exchange places (not necessarily always at the best rate, but good enough and much better than the horrible rate at the airport). All the staff are very hardworking and respectful. It feels safe in town and staying in this guesthouse. Thanks, Elif!