Charlotte was a great host and a real, long-time Austinite. She was friendly and will regale you with stories of the 60s counterculture. During my stay, Charlotte helped me receive a mailed credit card when I lost mine.
My room was very clean when I arrived. She provided abundant toiletries as well.
The location is at the south point of South Congress, which is moderately far from Austin's downtown, but very close to the cool, old school SoCo neighborhood and other attractions south of the river.