Celal place is perfect to know Istambul. Is place near to the three main attractions in the city (blue mosquee, Haggya Sofia and Topkapi). There are a lot of restaurants and nice markets too. Also, is very well connected to reach other places in Istabul. I recommend 100% spend your days here. Only one thing, we landed on SAW airport and we did not know what was the best way to get the neighborhood but it is a matter of coordinate before.