The place is located at the best possible district of Istanbul -- beautiful, lovely and with the best food places. It's very convenient -- cafes and grocery stores are very close, so is the tram station (which you will use constantly). The place is convenient -- they have a code lock, so you'll be able to leave your baggage even early in the morning. It has all the necessary stuff, also a printer, an oven and washing/drying machines. George is so friendly and helpful, we had so much fun staying! If you are into this, you can spend hours chatting with him and other guests -- or have your quiet time.
Overall -- best place to stay in Istanbul ;)