Mecarena is really nice person so I hate to be critical be it's essential for future travelers to know what they are renting exactly.
Kitchen is extremely basic, amenities are very, very old and in bad shape, no lids on pots, one wine glass...cooking is not a pleasure and I really plan on that
There was glitches for a start, ac - not blowing cold enough, fridge not working, no gas in the building that was resolved with something that was a parody of a shower and no hot water anywhere else, no stove just one very inefficient burner
That was not acceptable but host intentions were genuine and issue was resolved when reported, anyhow there was a huge inconvenience to deal with it at the very start of the trip
Location is fine for the area, close to the metro and plenty of buses, good local places to go eat nearby - but make sure you speak fluent Spanish, as this is rather local area
But I didn't like the area regardless, it's just concrete jungle with little charm to me, some old buildings are cute, but it's just too dense in there - no parks, no places to walk around really. But this is obviously not a host fault but my personal preference.
I think host is a genuine and very nice person but lacks the skills to run a tourist business, at the end at monthly price of ~$800 I don't find it cheap at all to deal with all those imperfections that could have been avoided only if host wanted to
Also furniture is extremely cheap and looks like it was taken of from the trash bin and painted
Mattress was not really comfortable
AC is only in the living room that is totally unsuitable in the hot BA summer, we had to drag the mattress to living room to sleep over very hot nights
I would look for a better place to stay in Buenos Aires as it's easy to find it for similar price, in general not very bad, but also not great experience