Here are the pros and cons:
Pros:
1. Beautiful/safe building in the best location in Buenos Aires.
2. Literally within walking distance (5 to 10 minutes) to all the amazing cafes, restaurants, and shops. Definitely stay here if you want to feel like a local with great proximity to some cool places in BA.
Cons:
1. Not really the host's fault, but the building's security guy is extremely rude. Got yelled at during the check-in process and was really confused at why I was yelled at. It seemed like he was yelling at me because I didn't announce myself at the gate, but wish there was a clear, written instruction provided by the host on how to enter the building properly.
2. Laundry coins are not actual ARS peso coins. You have to buy laundry-specific coins from the security guys using ARS peso cash. Didn't know this and walked around to get coins, after realizing that it's impossible to get coins in Argentina. (again, wish there was a proper instruction on this as I wasn't aware of this unique circumstance, having done laundry with real coins in the US).
3. The bed sheets had multiple stains. Could be that the sheets were washed and stains didn't come off, but didn't look too pleasant.