Xavier was a great host - very responsive, and helped me to arrange transport to and from EZE airport that was flawless. This was a very short stay for me, but I arrived very early in the morning, and left late in the day, so having Xavier be so flexible was excellent. I never used the provided Sube public transit card, so can't comment on that - but I would have used it if I had gotten the time to explore more! The apartment is exactly as pictured - small, but the bed is comfortable. I didn't cook or eat in the home while there, so can't comment on the other amenities. The shower was excellent, hot, and I appreciated the body wash that was provided.
Overall, an excellent value, and a good location for being close to public transit and walking distance to puerto madero etc.