This was our first time staying at an Airbnb. We really liked our experience here. Specifically, we liked the massage chair, and the ceiling fan that did a good job keeping us cool overnight and the room was a very comfortable temperature. We enjoyed the little touches, including the free, delicious banana bread, and having a fridge stocked with some goodies (a few beers, some juice, some yogurt, etc.). It had a nice shower, too, with good water pressure that heated up instantly, something not every place we stay at provides. We also liked the neighborhood. It was near South Congress street, and walking distance to things like Barton Springs (granted, like a 20-minute walk, but still). Area was also quiet, so you don't hear the revelry you hear closer to downtown.
One con is we would have preferred more opaque curtains or blinds. You are in the back so fairly private, but it would conceivably be possible for a neighbor to look in. Also, the dogs were friendly and we liked petting them, but I'm a light sleeper and one night I did wake up when one of them barked. My wife didn't and it only happened one night, but something to be aware of if that is important to you.
Overall, we really enjoyed the place and would heartily recommend it.