Couple of thoughts. This is a very nice apartment in a ver nice area of town. The place was very clean with no significant issues checking in, with the internet or anything like that.
That said we did have 1 major issue - the AC unit in the living room wasn’t working. Buenos Aires in December can get hot and it did get hot for us while we were there. The AC in the room worked well so sleeping wasn’t an issue. But hangin out in the living room wasn’t a pleasant experience.
Communication with the host can be improved. While they were responsive on all channels, I’m still not clear if they knew about this issue or not. At the end of our stay they agreed to issue a partial reimbursement for our stay.
The apartment is very nice but without the AC situation being resolved, is not recommended in the December - February portion of the year.