The Celine Hotel is ideally situated for exploring the vast city of Istanbul, especially the Sultanahmet (old city) area where most of the tourist attractions are located. There is easy access to two different T1 tram stops, which is the best way to get around the city in the least amount of time.
Staff were wonderfully helpful, accommodating and friendly. We had a ground floor room, which was quite large with high ceilings. It was very quiet despite its central location. The king bed was nice and softly comfortable. I only missed having a down pillow selection, but otherwise everything was perfect.
The hotel has an old-world vibe to it, but with all the modern amenities you would want. Some friends of ours had upper floor rooms, which were smaller but provided either a nice view of the Bosphorous Strait or a balcony overlooking the street.
I would return without hesitation!