Great location, perfect space for a couple or solo traveler.
The bathroom across the yard in the main house was nice and easy to access, but it was pouring rain while we were there so just keep that in mind when booking. We did have a bit of trouble with the rain leaking into the Airstream. The rack to hang clothing was right next to a window that leaked, so the shirts I had hanging (for a wedding the next day) got some brownish rain stains on them. Luckily I was able to wash and dry them before the wedding in the laundry room adjacent to the bathroom.
Overall we had a great time in Austin and enjoyed staying here.