Is there any real-world proof this works for big events, or is it just marketing?

There's genuine word-of-mouth behind it. The site's testimonials name real photography businesses — Chirag Mahajan Photography, Vows Beyond The Lens in Delhi, a Chandigarh-based professional — who describe using it since beta and delivering real weddings on it. One individual customer talks about uploading a 400 GB wedding album with the founder's direct help over WhatsApp. None of that is a guarantee for your specific workflow, but it's a lot more evidence than most platforms this size can point to. The recurring themes in the testimonials — speed, stability, responsive support, guests finding photos easily — are consistent, which is usually a good sign.