I have a laptop with Vista Home OS.
I started a year ago with the Sony eLibrary then added ADE about 6 months ago. I found it easy to set up folders/collections on both Readers through the Library. I did not set up or use sync.
I back up and file all my books as soon as I download them.
I was afraid of doing the upgrade after reading so many problem posts. I actually read and saved threads with problems and solutions, just in case I needed them.
Surprise.. When I opened eLibrary and it asked if I wanted to upgrade, I said yes and it gave me 2 options on how to do it. I upgraded through the drop down menu option. No problems!
I had one quick specific question about checking a box for associating file extensions (which I didn't want, but wanted to check if I was understanding the questions correctly) and WDE quickly jumped right in and specifically answered me.
< Thank you muchly WDE! >
One of these days, I'll venture on to Calibre. Right now the Sony Reader Library does what I need and I can get the Freebies.