Everything was a breeze. Smooth check in, comfortable bed, and a super relaxing living room. I was there in late March and it was warm but i didn't need an AC, not sure if there is one, i didn't check. It was a nice secure building with a nice doorman. there were a lot of nice cafe's and breakfast spots just 2 blocks north of me. The more exciting vibrant nightlife of Palermo was about 6 blocks or so. I'm a single guy and i felt fine walking back around 2 or 3 in the morning. Palermo seems to be one of the safer areas. It's about a 8 minute walk to the closest subway line. When looking for a place I wanted to be close to a line because i thought i would take public transit everywhere. Bonpland and Fitz Roy seem to be the hippest streets; theirs is just about a 3 minute walk north. Hope that's not too specific :) If anything don't worry about getting so close to the subway line (which runs down Santa Fe). They don't run that late and there are cabs cruising down even these little residential streets all the time so it won't be more than 3 minutes before you can hail one down.
I didn't use too many of the amenities so i can't speak to that. But the shower and toilet worked fine (good water pressure). I would have liked a bar of soap waiting for me. i didn't see one in the master bathroom.
I was most interested in the location and i'd say it totally executed on that. The calmness and serenity of the master bedroom where a welcome surprise. There's also another room with two twin beds and a bathroom that i didn't use but are there if you have more people in your party.