it's worth the price. The flat is in one of the safest neighborhoods, the building has a warden during the day and keypass door. Ideal as your first steps in the city. it's like 10 minutes walk from Recoleta cemetery entrance. it's also not on main streets, although you will hear the bar in front during the weekend. pretty normal as it's on the second floor.
Communication is great, on point and responsive. Guido is a lawyer and Teresita, his mum, helps him with check ins and outs. All managed via text messages, I went to pick up the keys at his mum's place few blocks round the corners where she lives.
AC works, fridge and micro works, fast internet (it worked like a charme for my remote working sessions) there's a bidet shower too. Shower pressure not massive but it does the job.
I'm definitely recommending this as a safe, fool proof choice to kickstart your long stay visit in Buenos Aires.