We've just returned from a fantastic few days in this apartment in Beyoğlu. The apartment is beautiful - even bigger and brighter than in the photos, and spotlessly clean.
Check-in was efficient and very easy, and Can (who let us into the property) was very friendly and helpful, offering recommendations for things to do in the locality.
It's also in a great location for walking around and exploring Istanbul - quieter than nearby Karakoy, and Taksim Square but still plenty of lovely cafes and restaurants to visit.
We couldn't recommend this apartment enough - thanks VNG!