Last week the Temkin Group published the 2018 Temkin Effort Ratings, which the company calls the industry’s most comprehensive benchmark of customer effort. This measurement shows the degree to which customers view companies as either easy or hard to work with.

The winner? Wegmans Food Markets.

Temlin has proclaimed Wegmans as the “easiest company for customers to work with,” with an overall score of 90 percent. Other top performers noted in the study were Subway, Citizens Bank, Ace Hardware, and Wawa Food Markets, all with 89 percent scores. USAA and Publix were close behind at 88 percent.

The worst ratings belong to Spirit Airlines, Medicaid and CarMax.

According to the Temkin Group, supermarkets, fast food chains and retailers earned “excellent” ratings (above 80 percent), while health plans and TV/Internet service providers earned “poor” scores (below 60 percent).