If you're even considering it, rent this house! The architecture, views, trail access, and wonderful outdoor areas, it's all fantastic. It's actually even more beautiful in person than it's depicted in the photos posted. And what we enjoyed the most was how uniquely designed it is.
We stayed for two nights over Thanksgiving (my wife & I, our 4 kids, and Lucy allowed us to bring our dog) as a mini-vacation. The location in Austin was great, but the couple times we left to visit a park and find a meal we found ourselves rushing to get back. The house managed to be fun & entertaining for the kids (aged 4-12) while at the same time relaxing and serene for us. And while we didn't have the opportunity, it would be an outstanding house for entertaining.
Lucy was a gracious host, and we couldn't have been happier with the whole experience.