Need your Feedback on my Web app

Hi folks, I finally completed developing the Murmur web app. Murmur is like Segment to bridge outdoor advertising with online and helps startups save advertising money and better understand their target audience.
Here is a Video recording where I describe how to use Murmur.
https://www.loom.com/share/3e74345652234eebbdf2354dafc8c5b9
Feel free to signup at https://app.murmurcars.com
Happy to get your feedback.