Overall, we had a great stay with Top Trip Rentals. We purposefully chose this spot since we were attending a wedding at the Driskill and wanted to be nearby. It ended up being the absolutely perfect location for us!
If you're going to Austin for the downtown area and bars, you're in the right spot. It can get a bit loud being on 6th street, but we didn't have any trouble with sound and the apartment windows were actually pretty insulated and great.
Overall the apartment was great and just the right size for 2 people (frankly even a little bit big). You could easily have 4–6 people there and not feel cramped. We had plenty of space, both in the bedrooms as well as in the common spaces. One of the bedrooms has no windows and can be very dark, but that makes it great for sleeping! Just not for waking up. The single bathroom made it slightly hard to work around one another, but it was a large size bathroom so wasn't really a problem.
Communication with the host was awesome. Always very quick and easy, and they were super accommodating for our early check-in and late check-out requests.