I'm spending six days in IST during the first week of October. The first four are at the Pera and the last two are at the Bosphorus.
I originally was trying to get all of my nights at the Bosphorus, but when one of the mid-week days was sold out before I got all of the points I needed, I had to move my stay somewhere else.
I suppose I could spend all six nights at the Pera, but would like to check out the Bosphorus for a couple of nights before heading home.