Alexis' place is located in a very quiet residential area in downtown, close to the University of Texas or The Capitol, and not far from The Convention Center (30 min walk). You really don't need a car if you like to walk. Austin is a very pleasant city and people of Texas are nice and warm.
The apartment is super cozy, clean,quiet, cool and has all the appliances and stuff (freezer, microwave, A/C, comfy bed, TV, fast wifi) you need for a wonderful stay.
I really felt at home and needless to say, Alexis is a very responsive, helpful and nice host. She left food and drinks for a starving traveller who arrived at 1am and made sure I've had everything I needed.
Highly recommended.