Check in/out was easy. I can't comment much on what the neighborhood was like later at night because I was traveling with a twelve-year old, and we were tucked in fairly early each evening. However, the apartment is close to restaurants and activities in San Telmo. During our nine day stay, we used the subway almost exclusively -- it's an easy 5-6 block walk to the station, and Rosa provided a Subte transport card that we could refill. The apartment itself was very comfortable. I loved the style, light, and design of the space. The only killer was the three flights of steps at the end of a long day of walking! All in all, a very pleasant stay with a great host.