I was in Austin for SXSW with 3 colleagues, and John's house was perfect for our needs. Carly, who was managing the property at the time, was extremely accommodating whenever we needed anything.
It was all very comfortable, convenient and low-stress.

If you're staying here for an event downtown, just note that it's 1.2 miles from the house. Close enough to walk or ride a bike easily, and just far enough that you don't want to return home too often throughout the day. Which worked great for us.