Great place for a large family to stay when you're in the Ortakoy area. There are 2 bedrooms in the lowest level that share 1 nice bathroom, 1 bedroom on the entrance floor with a separate bath, and a bedroom on the upper level with a smaller bathroom that has the amazing view of the Bosphorus and it's own private balcony.
The living room/kitchen area is nice and cozy, and the kitchen has almost everything you would need to cook some great meals for the family.
The location is not great for walking, I would recommend a car or taxi.
Just an FYI, taxi drivers have a hard time finding the address, so just use the Class Hotel address and it will be much easier.