"It's fully functional"
You said the deals aren't real. I guess I was confused, I thought this was automatically aggregating all the deals from other services. If you are having to go talk to restaurants and secure deals themselves, this idea won't scale. Just being up front.
"A large part of the design challenge is lack of content"
No, the design is obviously done by a non-designer. That's okay to start off with. Then slowly improve on it by asking feedback from people with design background, and eventually hiring a contractor to add some polish.
"At this stage I'm going to devote my days to door-to-door pitches to get restaurants on board while my nights will be spent developing features based on feedback from restaurateurs"
Marketing 1 feature > Adding more features
I highly recommend the book "Start Small Stay Small" by Rob Walling, it is a great business book for micropreneurs. Also Rob has a great podcast "Startups for the Rest of Us" that I think you would like.
best of luck!