Madison Startup Incubator 94 Labs Launches 14 New Startups - Beta Invites
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Maybe they have a crazy customizable rules engine that owners can easily configure their own rules - that would be a killer feature. Without that I'm not sure they can break into many small-to-medium sized restaurants.
The other killer feature they could implement (if they don't already have it) is branding customized for each restaurant chain and/or owner. If your local restaurant that has 8 locations could get a customized version of Zoomshift for a reasonable monthly charge, had customizable rules and incredible support - that would be a no-brainer for most restaurant owners.