I was very hesitant of it, but after talking to a few people here, we decided to go for it.
For us it was 100% worth it. We were only there 3 days and we walked away with over 175 pictures.
There is a map somewhere on line of where all the photographers are, but mostly they are all over the place on the main walks to the parks so you can get good views of the main landmark.
They also take multiple photos- so for every photographer we stopped at we got 3-5 pictures.
We did many character meet and greets as well, and the photographers were at about 80% of them. And they start taking pictures the minute the kid walks about to the character. So once again for each character we got 4-8 pictures. And some of my favoirtes are the ones where my son wasn't totally posed with the character saying cheese, but instead just talking with them, giving hugs, getting kisses, etc.
We had breakfast at Chef Mickeys and got that picture
We got all the pictures from Enchanted Tales with Belle
We got all the pictures from any rides where pictures were taken.
We are offsite, so we had a card they scanned rather then a band. if you are onsite, it can be linked to your band and that is what you scan.
Hope that helps!