This is the perfect place to explore Austin - an idea location walking distance from the downtown area, but not in it so you can sleep. Close to the Capitol and the start of the University. Do not be fooled by the word "flat" - it is the top storey of a beautifully-restored two-storey house. So much better (and cheaper) than the corporate hotels in Austin. The checking-in and entering the flat system means you can arrive at any time of day or night after 4pm, as the hosts don't have to let you in - no key exchange.
This also means this is not your typical airbnb stay as you don't meet your hosts unless there is a problem. Basically more like a flat rental. A beautiful flat though so why anyone would want to stay anywhere else in central Austin is a mystery. You may think it is a little pricey if this is the first place you see in Austin, but actually it is almost half the price of good hotel rooms in the city centre. If you are a 60s music lover added bonus of being able to play vinyls on the vintage record player with state of the art speakers.