Lawrence's unit was absolutely perfect - the location, size, cleanliness, everything.
We did not have a car in Austin, so proximity to things was important to us. The unit was right next to a city bike rental, so we got a weekend pass and rode everywhere. It also was near several convenient bus routes. It was only a 15 minute walk to downtown, as well as quick 10 minute walk to the South Congress shops. The park and river front are literally steps from the door.
I can not recommend this unit enough. If you're coming to Austin, this is the perfect place to stay.