We stayed there for two weeks and really enjoyed our stay! The flat was nice and clean, although tiny, but it shouldn't be a surprise for anyone who've seen the photos ;) It was very easy to communicate with Ergun, as he always respond very quickly and is a nice and polite person. Also, Ergun did an amazing job at soundproofing the flat, as the street it is at a very loud one: there are several bars that are open all night long and are very crowded. So, if you've got light sleep, you should make yourself a favor by choosing some place much farther from Istiklal street, as there's no such windows that could completely shut all these sounds.