The first thing that made me interested in Marmara Guest House when I found this place on airbnb is its unique and authentic breakfast. Finally I decided to stay at Elif's guest house for 3 nights. The conversation before check in with Elif were so nice. Elif and Yagmur really give fast respons and always give me solution from my answer. And when finally O checked in, I found like home in Istanbul. The bed was nice, the cleanliness of room and toilet were perfect, the breakfast was outstanding :) (plus you can see the beautifull view of Marmara sea from it's terrace). If you wanna visit Aya Sofya, Blue Mosque, Topkapi, Basilica Cistern, and many others nearby museum, you just need to walk for a while, not more than 10 minutes (even I could walk from this place to Istiklal Cadessi with no worry). So, I wanna recommend everyone who love to have great vacation in Istanbul to stay in Marmara Guest House :)