My brother and I were in town for RTX at the convention center. The house is just a short walk away from the convention center and the rest of downtown Austin. It is equipped with a basic kitchen and a bathroom (shower in tub). Beds are comfortable and the neighborhood is really quiet. You would not expect the interstate to be so close-by because inside you would never hear it. Additionally, we had triple digit days during our stay but the air-conditioning unit kept the rooms cool.
Sylvia is also one of the best hosts we have ever had, so I would definitely recommend staying here. When we come back to Austin I would not hesitate to book with Sylvia again!