As a rule of thumb, I tend to avoid franchisors that seem more interested in selling locations than in selling beverages.
Go to the company's website: don't you think that it's odd that they tell you what cities they have locations in, but not offer an address to find one? So (hypothetically), I'm a consumer that's a fan of Mountain Mudd and learn there's one in a nearby city -- how do I get there?
This company has devoted a large portion of their online presence to signing up new franchisees; perhaps it's just an oversight by their marketing people, but I don't see how a company so focused on moving licenses can possibly gain the admiration and loyal patronage of consumers. Franchises live an die on brand loyalty -- at least, the ones that survive do.