I was not able to go, but my friends went instead of me. So, reviewing from their words. The place is very nice and the stay was very pleasant overall.
Pros:
* Location!!!
* Beautiful historical building
* Huge apartment with plenty of room, well sound isolated
* Fully equipped kitchen
* Nice and accurate check in
* A friend of mine was really happy about the pillows quality :)
Minor cons:
* Air conditioning is single for all the rooms + the windows in one room cannot be opened (as I understand, this is due to the neighbours privacy preferences), so everyone has to use the air conditioning.
* Bathroom water quality. As mentioned before, the building is historical and thus old. So, this is quite expected.
Both friends mentioned that those were really nitpicks though and the general impression is great.