I always had an issue snorkeling with the old standard style masks. I would tend to still suck water in by breathing through my nose, or the air tube wouldn't stay at the proper angle to keep above water. This full face does not have those issues, offers a wider peripheral view without turning your head, and has a camera mount for my go-pro. So far I've only been able to test in the pool, but will definitely be packing it for vacations.