Marcos’ place is absolutely amazing and I would recommend it to anyone visiting Buenos Aires. I stayed here for a month so I got to know the place well.
The location is the best, you are near public transportation and there are a lot of good restaurants and cafes in walking distance. You’re close to the nightlife in palermo soho but away enough where it is quiet and peaceful at night. It is extremely safe and I felt more than comfortable walking by myself late at nights.
Marcos is the best roomate you can ask for. He is fluent in both English and Spanish. He is friendly, considerate, and keeps everything clean. He has a wealth of knowledge if you have any questions about stuff to see or do in Buenos Aires. He is also well traveled and has an interesting life story. You can be comfortable talking to him about any topics. He is social if you want to be but also respects your privacy and quiet time if you choose that.
As for all the amenities, there’s not much more you can ask for. There is a clean bathroom and the laundry machine is available for free. There is everything needed in a big kitchen, outside balcony patio, tea, and coffee. There is good wi-fi connection and it is fast.
If you’re still considering a place I’d definitely choose here!