Honestly, I'm not a fan of magic mobile. Most of the time someone uses it, they are from a large party and everyone's ticket is on one person's phone. So scanning in seems to take longer in general because they don't know where to place their phone on the scanner and they have to scroll through all of the passes. God forbid they accidentally scan the wrong one for the wrong person or scan the same pass twice. I've seen it really hold up some lines more than it should. Even when the CM's try to help, so many guests couldn't figure out the right spot or getting their party in the right order so the passes can be scanned quickly. Back in June we would be at the front entrance or at a LL entry and the line would stall for awhile. Sure enough, I'd pop by head out of line and see that the guests holding up the line were using magic mobile. Not saying that's how it is for everyone or it is now, but that was just our experience on our most recent visit six months ago.