I've stayed in this hotel several times while racing at Infineon Raceway, which is about 30 miles south. This visit was the worst of them all, the stand out exception being the Brasserie restaurant, which is affiliated but not attached to the hotel. (I've positively reviewed the restaurant in a separate review).
When you first arrive at Hyatt Vineyard Creek and pull up the circular driveway to the entrance, don't expect to be greeted by a bell man, or anyone else for that matter. It clearly isn't a Hyatt Regency level hotel. You find your way to the reception desk (to the right) to a not particularly well trained desk clerk (my clerk did not know exactly where my room was located). This is pretty inexcusable in a relatively small three story hotel. Yes they are friendly and nice, just young and inexperienced. I think the standard room rate is $139 this time of year (November), I was using Gold Passport points (12,000) so it didn't matter.
The rooms aren't anything to write home about, pretty standard Hyatt decor that is at least a few years old. The beds are typically comfortable (this being the best part of this Hyatt experience) and the pillows are soft and plentiful. The rooms are very clean. It is quiet during the night hours on the third floor, the only negative being a strong smell of cigarette smoke in the hallway outside room 312. The other big negative was the failure to give a scheduled wake up call at 6:00 a.m. on a Saturday morning, which I had called in to a nice young lady late on Friday night. Due to this egregious failure (again I blame this on inexperienced staff) I missed both a shower and breakfast and was late to check into the racing program as well. For a Hyatt hotel this was really unforgivable. (I complained to corporate and they credited me with 2,000 Gold Passport points, it should have been 12,000). I will not stay at this hotel again, rather I'd go to the Avian in Napa. I've stayed in at least a dozen Hyatts (I have over 222,000 lifetime Gold Passport points) and never failed to get a set wake up call. This place was only saved by its excellent Brasserie restaurant. Bring our own alarm clock.