We stayed here for a week, the choice was not the best) of the obvious advantages: location (really 5 minutes to all tourist places and 10 minutes to the metro station), a veranda on the top floor with a kitchen and a beautiful view of the Bosphorus, polite staff (changed the room without problems), clean bed linen and towels. Of the minuses: for the first time they were settled in a room with a bathroom meter by meter without hooks and shelves, without a shower enclosure (even toilet paper got wet after taking a shower), the sink was 30 cm wide, but the view of the Bosphorus from the room was excellent), very thin walls (there were children in the hotel who could even be heard on another floor), a monotonous breakfast (seriously, I ate eggs with cucumber every day, the flakes were the cheapest, as a result I bought muesli in a nearby supermarket and life became more fun, toilet paper sausage and olivier salad (it didn't look very good, so I didn't try it). As a result, it turns out that for 35k for 7 days is not the worst option, but far from the best. I advise you to consider a room in the Asian part of Istanbul, it is much cheaper and quieter there.
A good hotel for your money. A little shabby, but located in the center of the center, everything is within walking distance. The administrators are polite. There is always a classic Turkish breakfast for breakfast - kahvelti.