Great place. Location is a bit difficult due to hill and difficulty in dragging suitcases. There are also prostitutes roaming streets a night and early mornings. But its all safe and they dont bother you.
Rest host is best ever and is really quick to help if needed. Close to Havabus otogar taksim which was a big plus. Walking distance to metro station as well. Really clean place. Dont be put off with exterior since inside its just perfect