Staying in Karen's place has been one of my best airbnb experiences so far. She is such a great host, you easily forget that you are a guest there. :) She is open hearted, so generous and nice. Also a perfect guide for those who are new to Austin.
In terms of location, Karen's place is so convenient even for people without car. There are a lot of buses to downtown and if you don't mind walking for 10-15 mins you can find cool restaurants close by.
I feel fortunate to know Karen and I'd definitely recommend her place.