I strongly disagree with the low reviews. This is at least the 27th or 28th best beach in Texas. We saw sharks, dolphins and other wildlife like sand fleas during our visit. We also met a very nice lonely traveler (aka serial killer) who offered to give us a ride.
The lack of amenities, like bathrooms, is really no big deal. You just do as nature intended and potty in the ocean.
Overall it is the very best/closest beach if you live in Austin.