Rest of your advice is good. But, regarding > Honestly, no one is going to use this. - you're in a restaurant, you look at the menu… IMHO, you’re making a lot

Rest of your advice is good. But, regarding > Honestly, no one is going to use this. - you're in a restaurant, you look at the menu… IMHO, you’re making a lot of assumptions, the primary being that it’ll be used while in the restaurant. Why not at home, whether you’re planning to go to a restaurant and trying to decide if it’s worth or just ordering a take out. How about planning a party? And so on. There are several definite use cases, of course that doesn’t mean it’ll be successful, it’s just that it’s not clear but that no one will use it. Only post launch data will tell you.