Given this was our first stay in Mexico (and Mexico City), I was hoping for. good start to our trip, sadly the accommodation didn't live up to expectation. We have raised a number of issues with the property but after initially advising they would provide a part-refund, they have since not responded to communication - both with us and AirBnB. What I would say is that this could be a good place but it would need Niu to make a number of changes and put in some effort.
Although the security guards at check-in, and present throughout, were lovely and helpful they could not speak any English and so communication was via a translate app. Still, we got by. Had the agent (Niu) responded to our messages, instead of promising to respond and not, then we might have got further. Despite offering 24/7 response, it's clear they only respond Mon-Fri. Sadly on arrival (a Friday night) there was no drinking water in the room, so we had to go out and buy some. This is the only apartment on this trip where this has been the case, as elsewhere ensured we had plenty of bottled water. There were no other provisions either, again the only place on our trip not to have provided anything. Nor was there any guide to CDMX in our room, which would have been helpful. We had no wifi for the first 24h and then after that it was intermittent i.e. our room's wifi could not be located in the bedroom or bathroom but other areas of the apartment (closer to the main building) were ok. Nor could we access wifi on the roof terrace, although the working space seemed ok, if intermittent. Niu had said that this was because wifi throughout Mexico is slow. I'm writing this in a little village of San Juan Cosalá and our wifi is brilliant - it's not failed once during our stay, even at the top (outside) of this property. The headboard of our bed was not screwed into the base of the bed. At times we had no hot water - although the security guards responded quickly to this when we had none. the water pressure in the shower is fairly non-existent, leaving just slightly more than a trickle. Also, the drainage in the shower was poor. We could not lock our patio door, which was ok from a safety perspective (we were 5 floors up) but it meant any outside noise could not be muted as much as it might with a locking door. We accept that there are bars and clubs nearby but there's also a hospital directly opposite, so we had music, karaoke and sirens with no way of shutting these out.
The bright spots were that we felt safe, given the 24/7 presence of security. There are a number of food / drink places nearby and and Oxxo within a few minutes walk. Also the roof space was nice, quiet and welcome given the room was pretty compact.
It's also worth noting that this is a 45 minute walk from Roma Norte, a little less from Condesa.
So look, I've not left such a review as this previously as I've not needed to; and we always receive good reviews wherever we stay. My perspective is that Niu had (and have) an opportunity to put this right but instead of doing so they've ran from the issues we have raised, as I say despite their promise of a refund. Additionally, they were mostly non-existent when we raised these issues during our stay. We paid £906 for 6 nights and it was not anywhere near worth it. Despite receiving a partial refund, due to our experiences via AirCover, we have still paid £774 and this is still way, way too much.