I used to use Evernote all the time, although I wouldn't consider myself a power user. I don't think I utilized all of the features very well. I came to it through Tim Ferriss, I believe, and it was really amazing for me at the time.
I hardly ever use it anymore, using mostly notebooks for actual note taking now. I used to use the web clipper to save articles, but I found that when I would put something in Evernote, I hardly ever went back to access it later. It was like putting things in a vault. That probably all speaks more to me than the product. I am curious what new features they can provide with access to all of Google's machine learning APIs.