This is a mixed bag for me. I had to stay overnight in Istanbul because of an early morning flight…read moreand limited connection options, so I pre-booked a room landside so I could access my suitcase. It was very very expensive for what it was. I had booked a queen room, which was a tiny pod of a room that felt like something from a space movie that didn't even have a window, just a glowing panel that was supposed to feel window-like.
The real problem for me was that the room I was assigned had bed bugs. I always carefully check my hotel room when I first arrive, and I am glad that I did this because there were blood stains all over the bedding under the sheets, and there was even a squashed bug under the mattress. I immediately took photos and left.
While this would be typically a 1-star experience, the men at the front desk salvaged things. They were so alarmed by my story and the photos that they immediately upgraded me to a larger room (which checked out to be clean, but I still kept my stuff packed and away from all soft surfaces just out of an abundance of caution), and they tried to offer late checkout or breakfast, neither of which I could do. I appreciated how seriously they took my complaints, but I definitely think this is a place you should approach with reasonable caution.
Also, the hotel restaurant is astronomically priced. I had a plate of pasta, a bottle of water, and 2 glasses of wine, and the total was $87 USD.