I enjoyed staying at Sylvia's flat. It was an easy walk to the Austin Convention Center as well as to the central nightlight center of Rainey St. You do have to walk under the interstate (I-35) and there can be homeless people working the offramps for contributions or just sleeping under the freeways but there are taxis and Fasten in case you don't feel safe walking.
The flat itself was perfect for my needs. It was hot so the AC was appreciated. Coffee maker and hotpot with french press and a market nearby so managed nicely for breakfast.