Great location in Palerma, just a few blocks from tons of great restaurants and a block from the Subway. Definitely learn the Subway system so you can very easily navigate BA. Must do things are to tour the Opera House (Theater Colon) and the National Art Museum. Also, if a nice day go to Palermo Park. Eat at UCO for a unique and amazing dining experience (2 blocks).
The space is small but does the job. We only slept there and didn't spend a lot of time. Tomas is the BEST airbnb host in terms of quick communication.