Thanks for the helpful responses about staying in Istanbul vs. traveling to other sites.
My husband's sister stayed in Seven Hills and loved it. I only know Dersaadet based on reviews on trip advisor and other info gleaned from the internet. I don't know whether to stick with the reservation at Dersaadet or switch to Seven Hills. If my family doesn't enjoy Dersaadet it will be my fault for ignoring my sister in law's advice. In a way, Seven Hills offers less risk, but, for some reason, I lean towards Dersaadet. Can anyone help me compare the two?
A million thanks.