We stayed here for 4 nights as a reward stay in exchange for 140,000 HHonors points. We had a large, 2 queen bed room on the 23rd floor (this is a big hotel) and my Gold status got us free entry into the spa/pool. I talked my way into Executive Lounge access on check-in, but note that this is usually reserved for Platinum members.
The executive lounge has a cold breakfast buffet, fairly naff evening nibbles and soft drinks only. There is also one PC with free internet access. You can also pick up free wifi from the integrated coffee shop "Java Jive" in the lobby. Parking is $17 for 24 hours (ouch) but you can park in the Austin Convention Centre lot right next door for $7 a day with 3 re-entries (although it's technically no overnight stays). If you're staying over a weekend, it's worth knowing that parking on street is free all day Saturday and Sunday, and before 08:30 and after 17:30. T
he pool/spa was pretty good, but there are separate gender specific sauna/steam rooms (not sure if this is a US thing?) so you won't be able to sweat it with your loved one.
Location wise, the hotel is good as it's within a few blocks of all the bars and night-life on 6th Street, but yet not so close as to be noisy. If you're a runner, you can do a nice loop South from the hotel until you hit the river, and then along the river until you get bored.
For HHonors members, I found that the on property rewards are tiered at this hotel, and geared towards Platinum - sure you get some goodies for being Gold, but the Hilton treatment I'm used to (space available upgrade, free breakfast etc) seemed to be reserved for Platinum members.
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