The best thing about Mercedes apartment is the view. The bed is small (full size) but very comfortable.
The apartment needs minor fixes. The shower head was not adjustable, it was very loose, therefore I could not adjust it properly to aim higher. It was quite uncomfortable when showering. I ended up having to grab the shower head and rinse off where it wasn't aiming. Eventually it fell, hit the ground and broke. I was out of a shower head for 3 days and had to shower with the hose part of it, really frustrating. The shower floor of the bathroom has loose tiles and there is rust forming on the door from the water damage that leaks.
Toaster does not work. The apartment has very cheap and old everything, except for the bed sheets, those were nice. Everything else is very old and needs to be replaced. Shower curtain, rug in bathroom, kitchen and hand towels, shower /bath towels (stained) extremely cheap and old.
Wifi code is nowhere to be found. I had to go downstairs to message Mercedes to ask for the wifi username and password. There aren't any instructions on anything inside the apartment. There was no hot water kettle either, had to message her to bring one.
A welcome note and bottle of water upon arrival to the apartment would have been nice.
Restaurants are about a 10-20 minute walk depending on where it is in Puerto Madero. Building has 24 hour security which is nice.
Didn't use the pool because it was cold nor the other amenities (gym, sauna), so I can't comment on those.
Mercedes was accommodating with everything, However, I was busy on a work trip and would have hoped everything was in good working condition and right there in the apartment without having to contact her several times to request basic things, such as the wifi password and kettle.
I did not request new towels because i just did not have the time.