The apartment is well located. It is very close to almost all the attractions. Also the owners of the apartment let us in at 3 am as we had a night flight to Istanbul.
Regarding the disadvantages, first, there is no kitchen, just a room. There are lots of stairs, so it was hard to walk up and down to get to the apartment. Also it gets noisy at night since it's a very touristic area.
It was nice, we would stay there again. Thank you :)