Had a very enjoyable stay in the Meroddi hotel. Was travelling alone, and Cihan at reception was incredibly helpful in suggesting places to see, planning my daily schedule, and even booking a reservation for me at a recommended nearby hamam (a highlight!) All of the staff was very friendly and proactive, which which much appreciated.
My hotel room was on the first floor and more than generously sized for one person. I did hear some noise from above me on my final morning, but earplugs easily solved this issue. There were very few English-language TV channels, but there's no reason to be spending much time inside when there is so much to see nearby!
The location of the hotel was perfect - I was easily able to walk to Sultanahmet Square and all the shopping on Istiklal Avenue is less than 5 minutes from the door. There are lots of great restaurants and cafes right around the corner as well. Breakfast buffet was excellent, and there are made-to-order traditional egg dishes available as well.
Would absolutely stay here again on my next trip to Istanbul!