Ask HN: How do I refine my product pitch

Need help in refining the pitch for an idea that I'm developing. Would love to know what you are able to understand from this short description.

"Banjarey is a mobile app that allows travelers to capture & share their group travel experiences collaboratively, as well as get quick & specific information about places & things to do while travelling. It integrates the 2 things people use their mobile for while traveling, at a single place. A good way to understand this would be to mash Tripadvisor (with a better way for travelers to get information than “reviews & ratings”) with Path (for group experiences) "