IMO, Supply is challenging to figure out.
What will be the incentive for the person uploading the "vibe" ? Is a person who's on a nice time out can really be bothered to upload videos ? That too if he pays attention to your notification ?
How will you keep track of his location ?
A single ping in sector 29 can mean about 10 restuarants based on the location accuracy.
Maybe you can partner up with different establishments to share a video feed with you directly ? You can share revenues with them. But there is an issue with this.
On average, the vibe at a place tend to be the same on average. Popular ones are overcrowded. Unpopular ones are deserted. Newly opened ones are unpredictable. So your actual clients are the ones who are in the process of defining themselves. They do have a need for advertising on your platform, but its a short term need. You would need constant attention on the churn.
But on the flip side, you can easily trial this out using insta and grapevine.