It’s really hard to get consumers to switch behaviors for something they already can do through other means. Perhaps this is more efficient in some respect, but only if you ignore the inefficiency of changing your ways to learn a new tool, and further separate it from your existing communications medium (ie text messaging or whatever). I don’t feel like the value proposition is super high here.
In general people only tend to use 7 apps, and to create something for a rare activity will be very hard to keep in mind when you go to do it. So capturing the moment when people need to do it with when they find out about you is difficult to time… and that’s if you can convince them to try something new at all.
If you’re going consumer specifically for trip planning, I’d focus more on specific pain points versus “nice to haves”. It’s not clear from the website that pain points are considered. It also feels very structured, eg that you know how long you’d stop at a given place. In practice I don’t think many people operate that way, especially for a vacation unless they have reservations.
I’d suggest finding a niche with clear pain points that this solves, and then focus on that demographic. That may likely not include consumers.
Good luck, it’s really hard to make something new, put yourself out there, and know whether to stick with it or not. I’ve been down this road before. If you don’t try, it really won’t work!