Sometimes it works great, other times not. It's hard to say, and everyone has different experiences with it. Personally, it's better for me now than it used to be since updates, but it's still not perfect. A lot of people, myself included, go to the actual MDE portion of the Disney website on our phones' internet browser. It's the exact same thing, except you're going through the website as opposed to an app. A lot of us have found that to work better. There are also FP kiosks to use in the park to make FP changes. That's not ideal of course, but it is an option. Don't stress too much over it. The app being down will only ruin your vacation if you let it.
Just to be clear, it's not the same exact thing. There are some things the app can do the website can't, and viceversaSometimes it works great, other times not. It's hard to say, and everyone has different experiences with it. Personally, it's better for me now than it used to be since updates, but it's still not perfect. A lot of people, myself included, go to the actual MDE portion of the Disney website on our phones' internet browser. It's the exact same thing, except you're going through the website as opposed to an app. A lot of us have found that to work better. There are also FP kiosks to use in the park to make FP changes. That's not ideal of course, but it is an option. Don't stress too much over it. The app being down will only ruin your vacation if you let it.
It will never connect for me. I try to look at my plans and get nothing but a spinning circle. I use an Android phone. Not sure if that is the problem. But this trip is going to suck if I can't even look for FP+ or make changes while on the fly.
One thing I have found that helps, when I get stuck with the spinning wheel, sign out. It gets stuck in a signed in but not signed in loop. For whatever reason it thinks I'm signed in but doesn't recognize the sign in so it gets stuck in a loop. So I manually sign out. Then sign back in and almost every time that fixes it
Just to be clear, it's not the same exact thing. There are some things the app can do the website can't, and viceversa
Main ones
You can't mobile order on the website
You can't find ADR for some dining packages on the app