There are 3 rooms in this apartment, with one additional shared room for all guests. I was a very lucky guy cause that day I lived along :) Very good advantage - there is a metro station near the apartment. Also But unfortunately there is one minus: heating is accomplished by 2 air-conditioners and one electric-oil heater which is not enough for proper heating in winter time. In conclusion I wanna say that it's a very good choice for staying some days and explore Istanbul!