This apartment was awesome! It was larger than it appeared in the photos, plenty of space, beautiful and thoughtful interior with everything needed for a long stay. Good lighting, comfortable, clean environment.
Location: Great! The subway is literally a few steps from the entrance. There's a large grocery store just around the corner. There are 3 (yes 3) ice cream places/cafes right on the corner, and they're open till 2 a.m. somehow. Great view of the street from the balcony. Temple brewery (best craft beer in Buenos Aires!) is just two blocks away, tons of restaurants, organic food stores, etc. around. It can be a bit noisy, but the noise doesn't really get inside the apartment due to the high quality insulation and noise reduction from the windows.
Apartment: We stayed there in August during the winter. The apartment was never cold and has perfect insulation. The heater was great. You can take long hot showers and baths as the hot water is centralized, and not limited to a personal apartment water heater. The kitchen was well stocked, pots, pans, cutlery, etc. Plenty of natural light in the apartment in the morning and afternoon, and the artificial lights are warm and pleasant. The space is arranged very well, and the bed is separated from the kitchen and living room by a wall of open shelves. It makes it a lot better than a normal studio apartment without that division. And again, it's pretty big for a studio apartment.
We've stayed in three different locations in Buenos Aires, and this is by far the best apartment at this price point (about $1,200 USD for a month with all fees).
Host: Maria was always attentive and caring. Here's a great example: We asked if she happened to have a blender we could use, and she had a new one delivered to us the next day. She didn't have to do that, since a blender wasn't listed in the description, but she went out of her way to make our experience better. We really appreciated her attention and care!
Working: The work space was great once I rearranged things a bit to my liking. I use wired Internet for my job, and never had connectivity issues. The WiFi is also fast. The lighting was always good enough for video calls.
Safety: Super safe! We walked around the neighborhood and in a 30 block radius all times of the day, even 3 am or so, and it was always safe. Security guards at the front desk were always kind and helpful. The whole building is very secure, and you can only get in with a keycard, and even if you got in without one, the security guards recognize people who live there.
Amenities: The gym was good! There are two nice treadmills, and the workout equipment is a bit scarce, but effective if you know how to use it. The equipment is sufficient to maintain your exercise routine, and even to build muscle. There are also two pools and a jacuzzi, but it's winter so we didn't use them, but they're still open and clean!
Overall: Excellent apartment! Highly recommended. Great stay overall, caring host, nice facilities.