Angel's place was great for our type of stay: a home-base for our stuff and a short Uber from most destinations. We particularly appreciated her flexibility with check-in and check-out, and letting us leave our bags there outside of the normal time frame.
The space has a definite hostel-feel to it, which worked fine for us. But, if you are not comfortable with multiple groups of other people in semi-close quarters, this may not be the space for you. The front door is locked via a keypad, and was left unlocked a few times when we arrived back late at night. That is obviously not Angel's fault, but just something to keep in mind when staying with other travelers.
The area felt safe enough during the day, but we opted to Uber at night due to some homeless presence. This is likely a factor in most parts of Austin, though.
Lastly, we really appreciated the small touches like providing towels for Barton Springs, some cereal options, and shampoo/conditioner. The affordability of the spot allowed us to have more fun on the town. I would recommend Angel's place for any low-key traveler.