Deep was very responsive. He spotted a problem with the refrigerator the day before I arrived, and after we had messaged back and forth (still pre-arrival) he provided cold packs and a cooler to tide me over until he could obtain a replacement part. This turned up the day after I did, and after messaging me to schedule a good time to come in, he made the fix.
The home (which looks to be a second separate structure on the property) is modern, clean and spacious.
I am a stubborn pedestrian, so I chose a location on the north side of Austin that was within walking distance of the people I'd come to visit. A stubborn pedestrian can reach Whole Foods, Randall's (a grocery chain), or REI. By car these are a few minutes' away, and the Domain (a luxury mall) is about 5. Downtown is about 15 or 20 (very dependent on traffic, which can be quite heavy in Austin).
So when I visit these folks again in Austin, I'll certainly check to see whether Deep's place is available.