Really glitchy. Never able to load Future Plans because "my rez wasn't attached" but wouldn't let me attach because "rez ALREADY attached" lol. Had 2 nameless mystery guests in group nobody could remove. Multiple in-person guest services members couldn't even help. Madness. Mobile Order was ok. If this app was optional I would barely use it. It's infuriating & sucks time away from park & family. Unfortunately, Disney has made it essentially mandatory for a park visit. It's really frustrating.