I can appreciate that Slice is trying to undercut competitors like seamless, but their app is little more than a minimum viable product. It lacks any user-generated content, such as reviews or photos, so there's really nothing to make your choice on, unless you already know the place you're ordering from. The menus have no standardization, so you don't even have a reliable indicator of how much food you are ordering. I have trouble seeing how they can compete when their many competitors provide a much better UX.
