I just did Memory Maker from our late Feb early March trip. It was wonderful. I did download after our trip and I purchased a CD because I did not trust the download. After the fact I did not need to purchase the CD, the download went perfectly although I did get more Disney stock pictures from purchasing the CD.
There are a few rides you have to tap your magic band after you ride the ride, RockNRoller coaster and TOT jump to mind. Just go to where the screens are with the pictures upon exiting the ride, find your picture and tap your magic band to the Mickey wait for it to turn green and the pictures "magically" show up on your account.
They show up the same day, so we would go to the parks that day and back at the hotel room I would pull up all the pictures taken that day so I could check they all made it. On the website you can add stickers and borders to your pictures as well as zoom in and out on them. For instance I zoomed in on our party for the TOT picture as the picture includes all the people on the ride.
Just look for any cast member with a camera, they are at every character location, and at photo spots through out the park. Stop often, as there is no limit on the number of photos included and have fun with the poses.