It’s an easy app to reach for in a pinch, but do the recommendations live up to the hype? Chelsea Fairbourn tested Yelp’s favorite food spots to see if it’s worth your bite. She's got one rule: if it has over 100 reviews and scores more than 4.5 stars, it’s probably good. “Anything less on either criteria, and we just don’t know,” she added. Chelsea doesn’t rule out anything that’s below 4.5 stars. That’s where word of mouth kicks in! If she hears from a trusted source, she’ll take a chance. It’s a science. She compared her experience with five local stops with the Yelp review section.