I was and I still be here for my Erasmus-semester abroad and I can really say that staying in Dama's House seems to be the best place here! Flat is just really nice, totally clean and offers everything you need. And I think it's location can't be better, because you in the middle of Beyoglu (the heart of Istanbul and also it's nightlife), but it's still quiet when the school on the other side of the road is over and of course at the weekend. Sometimes you don't even notice to be in such a big city! The school is really the only annoying thing, but you can really handle it :-) I would always come back and recommend everybody to stay at Ali's place.