What you actually get
- Candids from every table and angle, including moments the photographer missed.
- Getting-ready, after-party and travel photos from guests.
- Guest videos of speeches and the dance floor.
- Voice and written messages (with a guestbook feature).
- Everything in one place, in original quality, without chasing people afterwards.
When it's not worth it
A 10-person elopement where everyone's in one group chat, or a strictly unplugged wedding with no phones at all. Even then, a QR code for the reception only can work well.
Further reading: QR code vs hashtag vs shared folder.