This was my first airbnb experience. I was worried that I would have to wait to use the bathroom, but it wasn´t a problem. I barely saw the other guests. The attic room is very spacious and private. I was lucky to meet Hermina right when I arrived. She was very friendly, and had some chocolate for the guests.
The parking was easy--I found a space one house away and left my car there for 3 days. The T stop is only 5 minutes away. If you are going to the Convention Center, it will only take you 30 minutes to get there.