I just walked from the Metro station (about 4 blocks) so don't know about parking. It is in a kind of a downtown area (a bit of a stretch to call it downtown but not really residential either).
The property was OK, nothing to scream about. No lounge that I was aware of--used to have one but closed? Breakfast was not the most appetizing. Apparently converted from another chain at some time.
Despite this, I am staying here again in June so thought it was good overall value. Room I was upgraded into was newly updated and spacious.
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BlondeBomber's Star Lounge Guide
BlondeBomber's Star Alliance Gold Comparison Chart 2003
BlondeBomber's Hilton HHonors Rewards Hotel Levels
BlondeBomber's Starwood Hotel Levels