Solid location to base your Austin stay
I was in Austin for 3 nights, 4 days for business at the University. There were a lot of hotels booked, so honestly this wasn't my first choice, but it worked out real well.
It lived up to Hyatt Regency standards, with quality room, comfortable bed (the TV HD quality could be better). I had a business package special that included breakfast buffet each morning, a shirt laundered each day, free internet, free bottle of water. It was really a good deal, especially the shirt pressing...it was sweet.
The location isn't the greatest if you want to enjoy downtown. You either have to walk across the 1st street or Congress bridge. Maybe a 15 - 20 minute walk depending on where you're going.
The Hyatt workout room lived up to its good standards with cool towels, lots of machines. It is also right next to a great trail and there are tons of people on it.