Are any of these Travelzoo or Groupon food deal places worth it?

[traveljunkie]

Looking for my group of 5 to save some $$ on our upcoming Dec trip to Vegas. We will have 4 nights of dinners and maybe do light breakfast or lunch during the day. Are any of these places worth pre-buying the deals for to save?
Sok-Rok (sushi)
PBR Burger
SEA: Thai
Camelot Steak (myvegas LP $150 off $325)
Spice Market Breakfast Buffet in PH (we will be staying here)
Pampas
Sugar Factory (dinner or brunch)
Chayo (breakfast)
Capos Speakeasy (lunch or brunch)
Flour & Barley

[RicoLindsey]

I?ve used a couple of those deals before, and they were hit or miss?some places honored them no problem, others made it awkward. I?ve had better luck just searching for the best restaurant near me once I?m in town and checking out reviews. That way, I find something solid and don't have to commit to a place that might end up being meh just because it had a coupon.