We really enjoyed our stay at Santa Hill; it was quite easy to get there from Taksim Square (10-15 minutes walk) and they immediately checked us in. The room was spacious enough for both of us, and we even had a balcony! Our room was in the top floor, where ceilings are low, particularly in the shower which was a bit incovenient for me, but still managed to get a nice warm shower (pressure was not great, but we managed!)
Breakfast doesn't have such a great variety, but it is filling and there are some good local products. We were most impressed by the service in the hotel; we didn't require much, but everyone seemed eager to help even if there was a bit of a language barrier.