It used to be that you could quickly access folders using the alphabet down the side in the mobile app. This has been changed. Now, if you tap any of the letters you are taken straight to the bottom of the page. I have a folder with approximately 1000 subfolders. It’s quite irritating having to manually scroll down the list to get to, say, the folders beginning with M. This was an extremely useful feature, when it existed. Why remove it? Mega and Sync at lease have a bar you can use to quickly scroll down. Dropbox doesn’t even have this feature.