It is a nice, clean, organized, stylish apartament. Its a very "cute" place. Although the neighborhood can be dangerous later at night, the apartment is very well located, too close to a metro station and to the historical center. You can find lots os facilities around ( tendas).
HOWEVER, some aspects must be very well organized in order to offer good services. The heating in the apartment is not sufficient. In a winter time it is cold inside. It has a little machine that do not support all the areas. In my case I was alone..but in cases where both rooms are ocupied it is impossible. Also consider the time we take to have hot water in the toilet. The internet conection is quite good but it did not worked in the last two days.
As a suggestion, I recommend to talk with the beighboor from the level above ( apartment 605), as I saw in others comments, he is disturbing ur guests. He makes noisy all all the time.. It is not normal. It seems and sounds that he is moving the furniture ( chairs, desks..) all the time. That is not normal.