Spent a month at Sean's place and it's honestly one of the top three Airbnbs I've used any where in the world.
Everything you could possibly need is in his loft - plus it's stylish, extremely well thought out, and easy to live in. Wifi is super-reliable with a full array of TV options if you're a watcher or listener. Well supplied kitchen and BBQ makes the place perfect for travelers who don't want to eat out all of the time.
Communication is fast, check-in with his co-host Patricia was fantastic and flexible. The loft is in an older converted building in the city center, so it does have a quirky charm. There's easy access to every Subte system in the city which makes getting around Buenos Aires ultra convenient. The Port, Casa Rosada, San Telmo, and many many other touristic sites are within an easy walk.
Perfect place to make a home base for both short and long stays.