We stayed here in January with our four year old son and had a very good experience. I would note up front they are planning an extensive remodel of the rooms so take that into consideration when reading other reviews.
The Hyatt is conveniently located just off the 101 and there is a grocery, drug store and several restaurants within an easy walk distance. We only ate breakfast at the hotel so I can't comment on other meals but the buffet breakfast was pretty good. Within easy driving distance are the beach, indoor malls and a number of other restaurants and shops.
The staff were very good and there is a rental car desk inside the hotel. They do have wireless in the lobby and an internet connected computer w/printer for a fee.
The pool is quite large but not heated so we didn't go in but the hot tub was still fun. They also have exercise facilities.
