It's hard to say really, I've had good and bad food at the same restaurant when it's been the same dish as previously. For me it all depends on the chef, if you know they're working and what their specialty is. The mood of the chef, the quality of the ingredients and time at the burner matter too. I've been enjoying food and said to friends, try a bit of this and they didn't like it . Other factors include the actual restaurant decor and whether customers feel pressured to leave, especially if the restaurant is busy. Stuff like like