That review is more "raving" than I would have given. You could expect anything from a cold snack plate (sandwich, "creative" salad) with a chocolate mint for "dessert", to actually a hot meal. I have had lunchtime flights lasting over 3 hrs where we have had that "snack" service in F. On that particular routing, I have no idea though. In any event, I would not recommend going too hungry. If you have a paid F tix, you are welcome to use the lounge, though at LAX they share with TW, so I'm not sure if F tix get you in. You will find the AS flight attendants very pleasant, but they do have a habit of ignoring the F cabin after the initial service. And I have yet to see a 12 seat F cabin on a 737. Even the seatmaps on a January trip of mine still only have 8.