We had a great stay here - the apartment was perfect for three friends, bright and comfortable with all we needed, and in an awesome location.
The main drawback is that there is no way to get into or out of the building (not garage) without being buzzed through by the doorman. Great for safety as it's not easy to get in, but we did have to wait a few times both outside and in.
Otherwise there was limited hot water (which is not totally unexpected in the city) and poor wifi (which was replaced on our last day, so hopefully resolved!)
Carmen was really nice - and seemed easier to reach by phone than through the app once we arrived.
We would definitely go back!!