I really liked the notes functions since I'm usually working fairly fast and I could use my own shorthand and codes on results and then go back later after I've done the majority of the search and pick and choose what I want.
For Gale, I had the same challenges of some of the people who posted. Even though I watched the tutorial about five times, I couldn't get the RSS feed to work. I tried both Safari and Firefox to no avail. But I can see how that would be really useful for an ongoing search need.
On Ebsco, I loved Page Composer and that you can actually customize it to how you want it to look.
I thought ProQuest's web page maker was easier to use than Page Composer.
I liked NetLibrary's full-text contents and the notes function as well. I started looking around for some books on other topics related to library science and was a little disappointed by how dated some of them were.
This Thing took more time than some of the others but it was really worth it. Cool!