Wow - maybe we have lower standards, but I'm surprised at the level of comments for this property. We stayed here frequently, and it's your average Marriott FS property. We only got upgraded once to the Presidential suite as plat, the rest of the time in the concierge wing. The room is comfortable, although the parking situation can be hairy because of the U-shaped building. It is MUCH better than a motel as some others have claimed.
There is a fairfield inn further south in American Canyon, and a Springhill Suites scheduled to open this year close by. Those are good alternatives if you want a Marriott branded hotel property.