A few of us booked Renee's place for SXSW. It was certainly big enough to accommodate and had all the amenities you'd want, though we spent most days and nights out and about.
With regards to the festival, the house isnt particularly close to anything and so it is definitely worth working out which bus routes to take to get to particular venues, where shuttles run from and downloading Uber/Lyft.
The stay was great and everything was made simple and explained perfectly - I will remember this trip fondly!